# questions

title: which-statement-is-correct-according-to-werners-coordination-theory-for-coordination-compounds
tags: ['Chemistry', 'Coordination Compounds', 'JEE Main']
source_db: MarksBatch2_P4.db
slug:
which-statement-is-correct-according-to-werners-coordination-theory-for-coordination-compounds-72794

question:
<div class="question">Which statement is correct according to Werner's coordination theory for co-ordination compounds?</div>

options:
<ul class="options"> <li class="correct"> <span class="option-label">A</span> <span class="option-data">Primary valency are ionizable in nature.</span> <svg fill="none" height="24" viewbox="0 0 24 24" width="24" xmlns="http://www.w3.org/2000/svg"> <path d="M12 2.25C10.0716 2.25 8.18657 2.82183 6.58319 3.89317C4.97982 4.96452 3.73013 6.48726 2.99218 8.26884C2.25422 10.0504 2.06114 12.0108 2.43735 13.9021C2.81355 15.7934 3.74215 17.5307 5.10571 18.8943C6.46928 20.2579 8.20656 21.1865 10.0979 21.5627C11.9892 21.9389 13.9496 21.7458 15.7312 21.0078C17.5127 20.2699 19.0355 19.0202 20.1068 17.4168C21.1782 15.8134 21.75 13.9284 21.75 12C21.7473 9.41498 20.7192 6.93661 18.8913 5.10872C17.0634 3.28084 14.585 2.25273 12 2.25ZM16.2806 10.2806L11.0306 15.5306C10.961 15.6004 10.8783 15.6557 10.7872 15.6934C10.6962 15.7312 10.5986 15.7506 10.5 15.7506C10.4014 15.7506 10.3038 15.7312 10.2128 15.6934C10.1218 15.6557 10.039 15.6004 9.96938 15.5306L7.71938 13.2806C7.57865 13.1399 7.49959 12.949 7.49959 12.75C7.49959 12.551 7.57865 12.3601 7.71938 12.2194C7.86011 12.0786 8.05098 11.9996 8.25 11.9996C8.44903 11.9996 8.6399 12.0786 8.78063 12.2194L10.5 13.9397L15.2194 9.21937C15.2891 9.14969 15.3718 9.09442 15.4628 9.0567C15.5539 9.01899 15.6515 8.99958 15.75 8.99958C15.8486 8.99958 15.9461 9.01899 16.0372 9.0567C16.1282 9.09442 16.2109 9.14969 16.2806 9.21937C16.3503 9.28906 16.4056 9.37178 16.4433 9.46283C16.481 9.55387 16.5004 9.65145 16.5004 9.75C16.5004 9.84855 16.481 9.94613 16.4433 10.0372C16.4056 10.1282 16.3503 10.2109 16.2806 10.2806Z" fill="#24A865"></path> </svg> </li><li class=""> <span class="option-label">B</span> <span class="option-data">Secondary valency are ionizable in nature.</span> </li><li class=""> <span class="option-label">C</span> <span class="option-data">Primary and secondary valencies both are ionizable in nature.</span> </li><li class=""> <span class="option-label">D</span> <span class="option-data">Only primary valency is not ionizable in nature.</span> </li> </ul>

correct_option:
<div class="correct-answer">
The correct answer is:
<span class="option-value">Primary valency are ionizable in nature.</span> </div>

answer:
<div class="solution">According to Werner's coordination theory prmary valencies are ionisable while secondary valency which satisfy by ligands are non ionisable.</div>


title: which-statement-is-correct-regarding-the-hinsberg-test
slug: which-statement-is-correct-regarding-the-hinsberg-test-84789
question: <div class="question">Which statement is correct regarding the Hinsberg test?</div>
tags: ['Chemistry', 'Amines', 'NEET']
source_db: MarksBatch2_P4.db
options:
<ul class="options"> <li class=""> <span class="option-label">A</span> <span class="option-data">Primary amines react with the Hinsberg reagent and yields N-ethylbenzenesulphonyl amide.</span> </li><li class=""> <span class="option-label">B</span> <span class="option-data">Secondary amines react with the Hinsberg reagent and yields N,N-diethyl-benzenesulfonamide is formed</span> </li><li class=""> <span class="option-label">C</span> <span class="option-data">Tertiary amines do not react with the Hinsberg reagent.</span> </li><li class="correct"> <span class="option-label">D</span> <span class="option-data">All of these</span> <svg fill="none" height="24" viewbox="0 0 24 24" width="24" xmlns="http://www.w3.org/2000/svg"> <path d="M12 2.25C10.0716 2.25 8.18657 2.82183 6.58319 3.89317C4.97982 4.96452 3.73013 6.48726 2.99218 8.26884C2.25422 10.0504 2.06114 12.0108 2.43735 13.9021C2.81355 15.7934 3.74215 17.5307 5.10571 18.8943C6.46928 20.2579 8.20656 21.1865 10.0979 21.5627C11.9892 21.9389 13.9496 21.7458 15.7312 21.0078C17.5127 20.2699 19.0355 19.0202 20.1068 17.4168C21.1782 15.8134 21.75 13.9284 21.75 12C21.7473 9.41498 20.7192 6.93661 18.8913 5.10872C17.0634 3.28084 14.585 2.25273 12 2.25ZM16.2806 10.2806L11.0306 15.5306C10.961 15.6004 10.8783 15.6557 10.7872 15.6934C10.6962 15.7312 10.5986 15.7506 10.5 15.7506C10.4014 15.7506 10.3038 15.7312 10.2128 15.6934C10.1218 15.6557 10.039 15.6004 9.96938 15.5306L7.71938 13.2806C7.57865 13.1399 7.49959 12.949 7.49959 12.75C7.49959 12.551 7.57865 12.3601 7.71938 12.2194C7.86011 12.0786 8.05098 11.9996 8.25 11.9996C8.44903 11.9996 8.6399 12.0786 8.78063 12.2194L10.5 13.9397L15.2194 9.21937C15.2891 9.14969 15.3718 9.09442 15.4628 9.0567C15.5539 9.01899 15.6515 8.99958 15.75 8.99958C15.8486 8.99958 15.9461 9.01899 16.0372 9.0567C16.1282 9.09442 16.2109 9.14969 16.2806 9.21937C16.3503 9.28906 16.4056 9.37178 16.4433 9.46283C16.481 9.55387 16.5004 9.65145 16.5004 9.75C16.5004 9.84855 16.481 9.94613 16.4433 10.0372C16.4056 10.1282 16.3503 10.2109 16.2806 10.2806Z" fill="#24A865"></path> </svg> </li> </ul>

answer:
<div class="solution">Benzenesulfonyl chloride reacts with primary amines to form sulphonamides and secondary amines yield N,N-dimethyl-benzenesulfonamide. Tertiary amines do not react.</div>


title: which-statement-is-not-correct-for-ptoluenesulphonyl-chloride
slug: which-statement-is-not-correct-for-ptoluenesulphonyl-chloride-60998
question: <div class="question">Which statement is NOT correct for p-toluenesulphonyl chloride?</div>
tags: ['Chemistry', 'Amines', 'JEE Main', 'JEE Main 2022 (26 Jun Shift 2)']
source_db: MarksBatch2_P4.db
options:
<ul class="options"> <li class=""> <span class="option-label">A</span> <span class="option-data">It is hinsberg's reagent</span> </li><li class=""> <span class="option-label">B</span> <span class="option-data">It is used to distinguish primary and secondary amines.</span> </li><li class="correct"> <span class="option-label">C</span> <span class="option-data">On treatment with secondary amine, it leads to a product, that is soluble in alkali.</span> <svg fill="none" height="24" viewbox="0 0 24 24" width="24" xmlns="http://www.w3.org/2000/svg"> <path d="M12 2.25C10.0716 2.25 8.18657 2.82183 6.58319 3.89317C4.97982 4.96452 3.73013 6.48726 2.99218 8.26884C2.25422 10.0504 2.06114 12.0108 2.43735 13.9021C2.81355 15.7934 3.74215 17.5307 5.10571 18.8943C6.46928 20.2579 8.20656 21.1865 10.0979 21.5627C11.9892 21.9389 13.9496 21.7458 15.7312 21.0078C17.5127 20.2699 19.0355 19.0202 20.1068 17.4168C21.1782 15.8134 21.75 13.9284 21.75 12C21.7473 9.41498 20.7192 6.93661 18.8913 5.10872C17.0634 3.28084 14.585 2.25273 12 2.25ZM16.2806 10.2806L11.0306 15.5306C10.961 15.6004 10.8783 15.6557 10.7872 15.6934C10.6962 15.7312 10.5986 15.7506 10.5 15.7506C10.4014 15.7506 10.3038 15.7312 10.2128 15.6934C10.1218 15.6557 10.039 15.6004 9.96938 15.5306L7.71938 13.2806C7.57865 13.1399 7.49959 12.949 7.49959 12.75C7.49959 12.551 7.57865 12.3601 7.71938 12.2194C7.86011 12.0786 8.05098 11.9996 8.25 11.9996C8.44903 11.9996 8.6399 12.0786 8.78063 12.2194L10.5 13.9397L15.2194 9.21937C15.2891 9.14969 15.3718 9.09442 15.4628 9.0567C15.5539 9.01899 15.6515 8.99958 15.75 8.99958C15.8486 8.99958 15.9461 9.01899 16.0372 9.0567C16.1282 9.09442 16.2109 9.14969 16.2806 9.21937C16.3503 9.28906 16.4056 9.37178 16.4433 9.46283C16.481 9.55387 16.5004 9.65145 16.5004 9.75C16.5004 9.84855 16.481 9.94613 16.4433 10.0372C16.4056 10.1282 16.3503 10.2109 16.2806 10.2806Z" fill="#24A865"></path> </svg> </li><li class=""> <span class="option-label">D</span> <span class="option-data">It does not react with tertiary amine.</span> </li> </ul>

correct_option:
<div class="correct-answer">
The correct answer is:
<span class="option-value">On treatment with secondary amine, it leads to a product, that is soluble in alkali.</span> </div>

answer:
<div class="solution"><p>P-toluenesulphonyl chloride, which is also known as Hinsberg's reagent, It reacts with primary and secondary amines to form sulphonamides.</p><p>Tertiary amines do not react with P-toluenesulphonyl chloride.</p><p><img alt="" src="https://cdn-question-pool.getmarks.app/pyq/jee_main/03623fc0-4cc4-43c5-aed1-327624c23673-9-7-20224.png" style="width: 460px; height: 377px;"/></p></div>


tags: ['Chemistry', 'Biomolecules', 'NEET']
source_db: MarksBatch2_P4.db
title:
which-statements-about-carbohydrates-are-correct-i-inulin-is-a-polymer-of-sucrose-ii-glucose-is-a-respiratory-substrate-and-is-also-called-fruit-sugar

slug:
which-statements-about-carbohydrates-are-correct-i-inulin-is-a-polymer-of-sucrose-ii-glucose-is-a-respiratory-substrate-and-is-also-called-fruit-sugar-44663

question:
<div class="question">Which statements about carbohydrates are CORRECT?<br/> <br/>
I. Inulin is a polymer of sucrose.<br/> <br/>
II. Glucose is a respiratory substrate and is also called fruit sugar.<br/> <br/>
III. Starch forms helical secondary structures in which it can hold I<sub>2</sub> molecules.<br/> <br/>
IV. The variant of cellulose in animals is glycogen.</div>

options:
<ul class="options"> <li class=""> <span class="option-label">A</span> <span class="option-data">I and II</span> </li><li class="correct"> <span class="option-label">B</span> <span class="option-data">III and IV</span> <svg fill="none" height="24" viewbox="0 0 24 24" width="24" xmlns="http://www.w3.org/2000/svg"> <path d="M12 2.25C10.0716 2.25 8.18657 2.82183 6.58319 3.89317C4.97982 4.96452 3.73013 6.48726 2.99218 8.26884C2.25422 10.0504 2.06114 12.0108 2.43735 13.9021C2.81355 15.7934 3.74215 17.5307 5.10571 18.8943C6.46928 20.2579 8.20656 21.1865 10.0979 21.5627C11.9892 21.9389 13.9496 21.7458 15.7312 21.0078C17.5127 20.2699 19.0355 19.0202 20.1068 17.4168C21.1782 15.8134 21.75 13.9284 21.75 12C21.7473 9.41498 20.7192 6.93661 18.8913 5.10872C17.0634 3.28084 14.585 2.25273 12 2.25ZM16.2806 10.2806L11.0306 15.5306C10.961 15.6004 10.8783 15.6557 10.7872 15.6934C10.6962 15.7312 10.5986 15.7506 10.5 15.7506C10.4014 15.7506 10.3038 15.7312 10.2128 15.6934C10.1218 15.6557 10.039 15.6004 9.96938 15.5306L7.71938 13.2806C7.57865 13.1399 7.49959 12.949 7.49959 12.75C7.49959 12.551 7.57865 12.3601 7.71938 12.2194C7.86011 12.0786 8.05098 11.9996 8.25 11.9996C8.44903 11.9996 8.6399 12.0786 8.78063 12.2194L10.5 13.9397L15.2194 9.21937C15.2891 9.14969 15.3718 9.09442 15.4628 9.0567C15.5539 9.01899 15.6515 8.99958 15.75 8.99958C15.8486 8.99958 15.9461 9.01899 16.0372 9.0567C16.1282 9.09442 16.2109 9.14969 16.2806 9.21937C16.3503 9.28906 16.4056 9.37178 16.4433 9.46283C16.481 9.55387 16.5004 9.65145 16.5004 9.75C16.5004 9.84855 16.481 9.94613 16.4433 10.0372C16.4056 10.1282 16.3503 10.2109 16.2806 10.2806Z" fill="#24A865"></path> </svg> </li><li class=""> <span class="option-label">C</span> <span class="option-data">I, II and III</span> </li><li class=""> <span class="option-label">D</span> <span class="option-data">I and IV</span> </li> </ul>

correct_option:
<div class="correct-answer">
The correct answer is:
<span class="option-value">III and IV</span> </div>

answer:
<div class="solution">The biomolecules with carbon, oxygen and hydrogen atoms are known as carbohydrates. Depending on the composition, they can either be monosaccharide, disaccharide or polysaccharides. Sucrose is a disaccharide and can be broken down to glucose and fructose. Inuline is a polymer of fructose.<br/>Glucose and fructose are monosaccharides, out of which fructose is also known as fruit sugar. <br/>Starch forms helical secondary structures in which it can hold I<sub>2</sub> molecules.  The starch-I<sub>2</sub> is blue in colour. <br/>Cellulose is a homopolymer. Starch is a variant of this but present as a store house of energy in plant tissues. Animals have another variant called glycogen. </div>


tags: ['Biology', 'Breathing and Exchange of Gases', 'NEET']
source_db: MarksBatch2_P4.db
title:
which-statements-about-the-human-gas-exchange-system-are-correct-i-the-absence-of-cartilage-in-small-bronchioles-allows-them-to-expand-ii-the-walls-of

slug:
which-statements-about-the-human-gas-exchange-system-are-correct-i-the-absence-of-cartilage-in-small-bronchioles-allows-them-to-expand-ii-the-walls-of-85585

question:
<div class="question">Which statements about the human gas exchange system are correct?<br/> <br/>
I. The absence of cartilage in small bronchioles allows them to expand.<br/>
II. The walls of the alveoli are made of cuboidal epithelium.<br/>
III. The recoil of the elastic fibres surrounding the alveoli helps to move air out during expiration.<br/>
IV. The trachea and bronchi are supported by circles of cartilage.</div>

options:
<ul class="options"> <li class=""> <span class="option-label">A</span> <span class="option-data">I and II</span> </li><li class="correct"> <span class="option-label">B</span> <span class="option-data">I and III</span> <svg fill="none" height="24" viewbox="0 0 24 24" width="24" xmlns="http://www.w3.org/2000/svg"> <path d="M12 2.25C10.0716 2.25 8.18657 2.82183 6.58319 3.89317C4.97982 4.96452 3.73013 6.48726 2.99218 8.26884C2.25422 10.0504 2.06114 12.0108 2.43735 13.9021C2.81355 15.7934 3.74215 17.5307 5.10571 18.8943C6.46928 20.2579 8.20656 21.1865 10.0979 21.5627C11.9892 21.9389 13.9496 21.7458 15.7312 21.0078C17.5127 20.2699 19.0355 19.0202 20.1068 17.4168C21.1782 15.8134 21.75 13.9284 21.75 12C21.7473 9.41498 20.7192 6.93661 18.8913 5.10872C17.0634 3.28084 14.585 2.25273 12 2.25ZM16.2806 10.2806L11.0306 15.5306C10.961 15.6004 10.8783 15.6557 10.7872 15.6934C10.6962 15.7312 10.5986 15.7506 10.5 15.7506C10.4014 15.7506 10.3038 15.7312 10.2128 15.6934C10.1218 15.6557 10.039 15.6004 9.96938 15.5306L7.71938 13.2806C7.57865 13.1399 7.49959 12.949 7.49959 12.75C7.49959 12.551 7.57865 12.3601 7.71938 12.2194C7.86011 12.0786 8.05098 11.9996 8.25 11.9996C8.44903 11.9996 8.6399 12.0786 8.78063 12.2194L10.5 13.9397L15.2194 9.21937C15.2891 9.14969 15.3718 9.09442 15.4628 9.0567C15.5539 9.01899 15.6515 8.99958 15.75 8.99958C15.8486 8.99958 15.9461 9.01899 16.0372 9.0567C16.1282 9.09442 16.2109 9.14969 16.2806 9.21937C16.3503 9.28906 16.4056 9.37178 16.4433 9.46283C16.481 9.55387 16.5004 9.65145 16.5004 9.75C16.5004 9.84855 16.481 9.94613 16.4433 10.0372C16.4056 10.1282 16.3503 10.2109 16.2806 10.2806Z" fill="#24A865"></path> </svg> </li><li class=""> <span class="option-label">C</span> <span class="option-data">II and IV</span> </li><li class=""> <span class="option-label">D</span> <span class="option-data">III and IV</span> </li> </ul>

answer:
<div class="solution">The tracheae, primary, secondary and tertiary bronchi are supported by incomplete cartilaginous rings. Each terminal bronchiole gives rise to a number of very thin, irregular-walled, and vascularised bag-like structures called alveoli made of squamous epithelium. Alveolar walls contain elastic fibres which stretch during inspiration and recoil during expiration to help force out air. This elasticity allows alveoli to expand according to the volume of air breathed in.</div>


title: which-structure-of-protein-remains-intact-after-coagulation-of-egg-white-on-boiling
slug: which-structure-of-protein-remains-intact-after-coagulation-of-egg-white-on-boiling-81992
tags: ['Chemistry', 'Biomolecules', 'JEE Main', 'JEE Main 2024 (27 Jan Shift 2)']
source_db: MarksBatch2_P4.db
question:
<div class="question">Which structure of protein remains intact after coagulation of egg white on boiling?Â </div>

options:
<ul class="options"> <li class="correct"> <span class="option-label">A</span> <span class="option-data">Primary</span> <svg fill="none" height="24" viewbox="0 0 24 24" width="24" xmlns="http://www.w3.org/2000/svg"> <path d="M12 2.25C10.0716 2.25 8.18657 2.82183 6.58319 3.89317C4.97982 4.96452 3.73013 6.48726 2.99218 8.26884C2.25422 10.0504 2.06114 12.0108 2.43735 13.9021C2.81355 15.7934 3.74215 17.5307 5.10571 18.8943C6.46928 20.2579 8.20656 21.1865 10.0979 21.5627C11.9892 21.9389 13.9496 21.7458 15.7312 21.0078C17.5127 20.2699 19.0355 19.0202 20.1068 17.4168C21.1782 15.8134 21.75 13.9284 21.75 12C21.7473 9.41498 20.7192 6.93661 18.8913 5.10872C17.0634 3.28084 14.585 2.25273 12 2.25ZM16.2806 10.2806L11.0306 15.5306C10.961 15.6004 10.8783 15.6557 10.7872 15.6934C10.6962 15.7312 10.5986 15.7506 10.5 15.7506C10.4014 15.7506 10.3038 15.7312 10.2128 15.6934C10.1218 15.6557 10.039 15.6004 9.96938 15.5306L7.71938 13.2806C7.57865 13.1399 7.49959 12.949 7.49959 12.75C7.49959 12.551 7.57865 12.3601 7.71938 12.2194C7.86011 12.0786 8.05098 11.9996 8.25 11.9996C8.44903 11.9996 8.6399 12.0786 8.78063 12.2194L10.5 13.9397L15.2194 9.21937C15.2891 9.14969 15.3718 9.09442 15.4628 9.0567C15.5539 9.01899 15.6515 8.99958 15.75 8.99958C15.8486 8.99958 15.9461 9.01899 16.0372 9.0567C16.1282 9.09442 16.2109 9.14969 16.2806 9.21937C16.3503 9.28906 16.4056 9.37178 16.4433 9.46283C16.481 9.55387 16.5004 9.65145 16.5004 9.75C16.5004 9.84855 16.481 9.94613 16.4433 10.0372C16.4056 10.1282 16.3503 10.2109 16.2806 10.2806Z" fill="#24A865"></path> </svg> </li><li class=""> <span class="option-label">B</span> <span class="option-data">Tertiary</span> </li><li class=""> <span class="option-label">C</span> <span class="option-data">Secondary</span> </li><li class=""> <span class="option-label">D</span> <span class="option-data">Quaternary</span> </li> </ul>

answer:
<div class="solution"><p style="text-align: justify;">When an egg is boiled, the soluble globular protein, albumin present in it is converted to insoluble fibrous protein.Â </p><p style="text-align: justify;">During denaturation, its biological activity is lost. Boiling an egg causes denaturation of its protein resulting in loss of its quaternary, tertiary and secondary structures.</p><p style="text-align: justify;">But the primary structure (representing the sequence ofÂ <math xmlns="http://www.w3.org/1998/Math/MathML"><mi mathvariant="normal">Î±</mi></math>Â amino acids) remains intact.</p><p style="text-align: justify;">Hence option A is the answer.</p></div>


tags: ['Biology', 'Breathing and Exchange of Gases', 'NEET']
source_db: MarksBatch2_P4.db
title:
which-structure-of-the-lungs-is-directly-involved-in-o-2-co-2-exchange-between-air-and-blood-capillary

slug:
which-structure-of-the-lungs-is-directly-involved-in-o-2-co-2-exchange-between-air-and-blood-capillary-47529

question:
<div class="question"><p>Which structure of the lungs is directly involved in O<sub>2</sub>/CO<sub>2</sub> exchange between air and blood capillary?</p> </div>

options:
<ul class="options"> <li class=""> <span class="option-label">A</span> <span class="option-data">Bronchi</span> </li><li class=""> <span class="option-label">B</span> <span class="option-data">Trachea</span> </li><li class="correct"> <span class="option-label">C</span> <span class="option-data">Alveoli</span> <svg fill="none" height="24" viewbox="0 0 24 24" width="24" xmlns="http://www.w3.org/2000/svg"> <path d="M12 2.25C10.0716 2.25 8.18657 2.82183 6.58319 3.89317C4.97982 4.96452 3.73013 6.48726 2.99218 8.26884C2.25422 10.0504 2.06114 12.0108 2.43735 13.9021C2.81355 15.7934 3.74215 17.5307 5.10571 18.8943C6.46928 20.2579 8.20656 21.1865 10.0979 21.5627C11.9892 21.9389 13.9496 21.7458 15.7312 21.0078C17.5127 20.2699 19.0355 19.0202 20.1068 17.4168C21.1782 15.8134 21.75 13.9284 21.75 12C21.7473 9.41498 20.7192 6.93661 18.8913 5.10872C17.0634 3.28084 14.585 2.25273 12 2.25ZM16.2806 10.2806L11.0306 15.5306C10.961 15.6004 10.8783 15.6557 10.7872 15.6934C10.6962 15.7312 10.5986 15.7506 10.5 15.7506C10.4014 15.7506 10.3038 15.7312 10.2128 15.6934C10.1218 15.6557 10.039 15.6004 9.96938 15.5306L7.71938 13.2806C7.57865 13.1399 7.49959 12.949 7.49959 12.75C7.49959 12.551 7.57865 12.3601 7.71938 12.2194C7.86011 12.0786 8.05098 11.9996 8.25 11.9996C8.44903 11.9996 8.6399 12.0786 8.78063 12.2194L10.5 13.9397L15.2194 9.21937C15.2891 9.14969 15.3718 9.09442 15.4628 9.0567C15.5539 9.01899 15.6515 8.99958 15.75 8.99958C15.8486 8.99958 15.9461 9.01899 16.0372 9.0567C16.1282 9.09442 16.2109 9.14969 16.2806 9.21937C16.3503 9.28906 16.4056 9.37178 16.4433 9.46283C16.481 9.55387 16.5004 9.65145 16.5004 9.75C16.5004 9.84855 16.481 9.94613 16.4433 10.0372C16.4056 10.1282 16.3503 10.2109 16.2806 10.2806Z" fill="#24A865"></path> </svg> </li><li class=""> <span class="option-label">D</span> <span class="option-data">Secondary bronchi</span> </li> </ul>

correct_option:
<div class="correct-answer">
The correct answer is:
<span class="option-value">Alveoli</span> </div>

answer:
<div class="solution">The alveoli represent the ultimate structural and physiological units of the lung. Alveoli provide a large surface area for gaseous exchange by diffusion. The alveolar wall is very thin, consisting of squamous epithelium and an extensive network of blood capillaries. Due to very intimate contact of blood capillaries with the alveoli, the exchange of gases takes place smoothly.</div>


title: which-structures-of-proteins-remainss-intact-during-denaturation-process
slug: which-structures-of-proteins-remainss-intact-during-denaturation-process-35770
tags: ['Chemistry', 'Biomolecules', 'NEET', 'NEET 2019 (Odisha)']
source_db: MarksBatch2_P4.db
question:
<div class="question">Which structure(s) of proteins remains(s) intact during denaturation process?</div>

options:
<ul class="options"> <li class=""> <span class="option-label">A</span> <span class="option-data">Both secondary and tertiary structures</span> </li><li class="correct"> <span class="option-label">B</span> <span class="option-data">Primary structure only</span> <svg fill="none" height="24" viewbox="0 0 24 24" width="24" xmlns="http://www.w3.org/2000/svg"> <path d="M12 2.25C10.0716 2.25 8.18657 2.82183 6.58319 3.89317C4.97982 4.96452 3.73013 6.48726 2.99218 8.26884C2.25422 10.0504 2.06114 12.0108 2.43735 13.9021C2.81355 15.7934 3.74215 17.5307 5.10571 18.8943C6.46928 20.2579 8.20656 21.1865 10.0979 21.5627C11.9892 21.9389 13.9496 21.7458 15.7312 21.0078C17.5127 20.2699 19.0355 19.0202 20.1068 17.4168C21.1782 15.8134 21.75 13.9284 21.75 12C21.7473 9.41498 20.7192 6.93661 18.8913 5.10872C17.0634 3.28084 14.585 2.25273 12 2.25ZM16.2806 10.2806L11.0306 15.5306C10.961 15.6004 10.8783 15.6557 10.7872 15.6934C10.6962 15.7312 10.5986 15.7506 10.5 15.7506C10.4014 15.7506 10.3038 15.7312 10.2128 15.6934C10.1218 15.6557 10.039 15.6004 9.96938 15.5306L7.71938 13.2806C7.57865 13.1399 7.49959 12.949 7.49959 12.75C7.49959 12.551 7.57865 12.3601 7.71938 12.2194C7.86011 12.0786 8.05098 11.9996 8.25 11.9996C8.44903 11.9996 8.6399 12.0786 8.78063 12.2194L10.5 13.9397L15.2194 9.21937C15.2891 9.14969 15.3718 9.09442 15.4628 9.0567C15.5539 9.01899 15.6515 8.99958 15.75 8.99958C15.8486 8.99958 15.9461 9.01899 16.0372 9.0567C16.1282 9.09442 16.2109 9.14969 16.2806 9.21937C16.3503 9.28906 16.4056 9.37178 16.4433 9.46283C16.481 9.55387 16.5004 9.65145 16.5004 9.75C16.5004 9.84855 16.481 9.94613 16.4433 10.0372C16.4056 10.1282 16.3503 10.2109 16.2806 10.2806Z" fill="#24A865"></path> </svg> </li><li class=""> <span class="option-label">C</span> <span class="option-data">Secondary structure only</span> </li><li class=""> <span class="option-label">D</span> <span class="option-data">Tertiary structure only</span> </li> </ul>

correct_option:
<div class="correct-answer">
The correct answer is:
<span class="option-value">Primary structure only</span> </div>

answer:
<div class="solution">The loss in biological activity of proteins due to unfolding of globules and uncoiling of helix is called denaturation of proteins. During the denaturation, primary structure remains intact but secondary and tertiary structures are destroyed. e.g. The coagulation of egg white on boiling, curding of milk caused by bacteria due to formation of lactic acid.</div>


tags: ['Chemistry', 'p Block Elements (Group 15, 16, 17 & 18)', 'NEET']
source_db: MarksBatch2_P4.db
title:
which-substance-is-used-as-a-standard-solution-for-titration-in-the-quantitative-estimation-of-o-3-gas

slug:
which-substance-is-used-as-a-standard-solution-for-titration-in-the-quantitative-estimation-of-o-3-gas-28893

question:
<div class="question">Which substance is used as a standard solution for titration in the quantitative estimation of O<sub>3</sub> gas?</div>

options:
<ul class="options"> <li class=""> <span class="option-label">A</span> <span class="option-data">Sodium hydroxide</span> </li><li class=""> <span class="option-label">B</span> <span class="option-data">Hydrochloric acid</span> </li><li class="correct"> <span class="option-label">C</span> <span class="option-data">Sodium thiosulphate</span> <svg fill="none" height="24" viewbox="0 0 24 24" width="24" xmlns="http://www.w3.org/2000/svg"> <path d="M12 2.25C10.0716 2.25 8.18657 2.82183 6.58319 3.89317C4.97982 4.96452 3.73013 6.48726 2.99218 8.26884C2.25422 10.0504 2.06114 12.0108 2.43735 13.9021C2.81355 15.7934 3.74215 17.5307 5.10571 18.8943C6.46928 20.2579 8.20656 21.1865 10.0979 21.5627C11.9892 21.9389 13.9496 21.7458 15.7312 21.0078C17.5127 20.2699 19.0355 19.0202 20.1068 17.4168C21.1782 15.8134 21.75 13.9284 21.75 12C21.7473 9.41498 20.7192 6.93661 18.8913 5.10872C17.0634 3.28084 14.585 2.25273 12 2.25ZM16.2806 10.2806L11.0306 15.5306C10.961 15.6004 10.8783 15.6557 10.7872 15.6934C10.6962 15.7312 10.5986 15.7506 10.5 15.7506C10.4014 15.7506 10.3038 15.7312 10.2128 15.6934C10.1218 15.6557 10.039 15.6004 9.96938 15.5306L7.71938 13.2806C7.57865 13.1399 7.49959 12.949 7.49959 12.75C7.49959 12.551 7.57865 12.3601 7.71938 12.2194C7.86011 12.0786 8.05098 11.9996 8.25 11.9996C8.44903 11.9996 8.6399 12.0786 8.78063 12.2194L10.5 13.9397L15.2194 9.21937C15.2891 9.14969 15.3718 9.09442 15.4628 9.0567C15.5539 9.01899 15.6515 8.99958 15.75 8.99958C15.8486 8.99958 15.9461 9.01899 16.0372 9.0567C16.1282 9.09442 16.2109 9.14969 16.2806 9.21937C16.3503 9.28906 16.4056 9.37178 16.4433 9.46283C16.481 9.55387 16.5004 9.65145 16.5004 9.75C16.5004 9.84855 16.481 9.94613 16.4433 10.0372C16.4056 10.1282 16.3503 10.2109 16.2806 10.2806Z" fill="#24A865"></path> </svg> </li><li class=""> <span class="option-label">D</span> <span class="option-data">Borate buffer</span> </li> </ul>

correct_option:
<div class="correct-answer">
The correct answer is:
<span class="option-value">Sodium thiosulphate</span> </div>

answer:
<div class="solution">In the quantitative estimation of O<sub>3</sub> gas, iodine liberated when ozone reacts with an excess of potassium iodide solution buffered with a borate buffer is titrated against a standard solution of sodium thiosulphate. This method provides a quantitative estimation of ozone.</div>


title: which-term-of-a-series-4-1-2-1-1-is-128
slug: which-term-of-a-series-4-1-2-1-1-is-128-74951
tags: ['Mathematics', 'Sequences and Series', 'NDA', 'NDA 2011 (Phase 1)']
correct_option: <div class="correct-answer"> The correct answer is: <span class="option-value">10 th</span> </div>
source_db: MarksBatch2_P4.db
question:
<div class="question">Which term of a series $\frac{1}{4},-\frac{1}{2}, 1, \ldots .$ is $-128 ?$</div>

options:
<ul class="options"> <li class=""> <span class="option-label">A</span> <span class="option-data">9 th</span> </li><li class="correct"> <span class="option-label">B</span> <span class="option-data">10 th</span> <svg fill="none" height="24" viewbox="0 0 24 24" width="24" xmlns="http://www.w3.org/2000/svg"> <path d="M12 2.25C10.0716 2.25 8.18657 2.82183 6.58319 3.89317C4.97982 4.96452 3.73013 6.48726 2.99218 8.26884C2.25422 10.0504 2.06114 12.0108 2.43735 13.9021C2.81355 15.7934 3.74215 17.5307 5.10571 18.8943C6.46928 20.2579 8.20656 21.1865 10.0979 21.5627C11.9892 21.9389 13.9496 21.7458 15.7312 21.0078C17.5127 20.2699 19.0355 19.0202 20.1068 17.4168C21.1782 15.8134 21.75 13.9284 21.75 12C21.7473 9.41498 20.7192 6.93661 18.8913 5.10872C17.0634 3.28084 14.585 2.25273 12 2.25ZM16.2806 10.2806L11.0306 15.5306C10.961 15.6004 10.8783 15.6557 10.7872 15.6934C10.6962 15.7312 10.5986 15.7506 10.5 15.7506C10.4014 15.7506 10.3038 15.7312 10.2128 15.6934C10.1218 15.6557 10.039 15.6004 9.96938 15.5306L7.71938 13.2806C7.57865 13.1399 7.49959 12.949 7.49959 12.75C7.49959 12.551 7.57865 12.3601 7.71938 12.2194C7.86011 12.0786 8.05098 11.9996 8.25 11.9996C8.44903 11.9996 8.6399 12.0786 8.78063 12.2194L10.5 13.9397L15.2194 9.21937C15.2891 9.14969 15.3718 9.09442 15.4628 9.0567C15.5539 9.01899 15.6515 8.99958 15.75 8.99958C15.8486 8.99958 15.9461 9.01899 16.0372 9.0567C16.1282 9.09442 16.2109 9.14969 16.2806 9.21937C16.3503 9.28906 16.4056 9.37178 16.4433 9.46283C16.481 9.55387 16.5004 9.65145 16.5004 9.75C16.5004 9.84855 16.481 9.94613 16.4433 10.0372C16.4056 10.1282 16.3503 10.2109 16.2806 10.2806Z" fill="#24A865"></path> </svg> </li><li class=""> <span class="option-label">C</span> <span class="option-data">1 th</span> </li><li class=""> <span class="option-label">D</span> <span class="option-data">12 th</span> </li> </ul>

answer:
<div class="solution">Let the given series be<br/>$\frac{1}{4}, \frac{-1}{2}, 1, \ldots \ldots$<br/>Let $\mathrm{a}=\frac{1}{4}$ and $\mathrm{r}=-\frac{1}{2} \times \frac{4}{1}=-2$<br/>$\therefore \quad$ General term $=\mathrm{T}_{\mathrm{n}}=\mathrm{ar}^{\mathrm{D}-1}$<br/>$\Rightarrow \quad-128=\frac{1}{4}(-2)^{n-1}$<br/>$\Rightarrow \quad-512=(-2)^{\mathrm{n}-1}$<br/>$\Rightarrow \quad(-2)^{9}=(-2)^{\mathrm{n}-1}$<br/>$\Rightarrow \quad 9=\mathrm{n}-1 \Rightarrow \mathrm{n}=10$</div>


title: which-term-of-the-sequence-20-19-4-1-18-2-1-17-4-3-is-the-first-negative-term
slug: which-term-of-the-sequence-20-19-4-1-18-2-1-17-4-3-is-the-first-negative-term-50361
tags: ['Mathematics', 'Sequences and Series', 'NDA', 'NDA 2009 (Phase 2)']
correct_option: <div class="correct-answer"> The correct answer is: <span class="option-value">28 th</span> </div>
source_db: MarksBatch2_P4.db
question:
<div class="question">Which term of the sequence $20,19 \frac{1}{4}, 18 \frac{1}{2}, 17 \frac{3}{4}, \ldots$ is the first negative term?</div>

options:
<ul class="options"> <li class=""> <span class="option-label">A</span> <span class="option-data">27 th</span> </li><li class="correct"> <span class="option-label">B</span> <span class="option-data">28 th</span> <svg fill="none" height="24" viewbox="0 0 24 24" width="24" xmlns="http://www.w3.org/2000/svg"> <path d="M12 2.25C10.0716 2.25 8.18657 2.82183 6.58319 3.89317C4.97982 4.96452 3.73013 6.48726 2.99218 8.26884C2.25422 10.0504 2.06114 12.0108 2.43735 13.9021C2.81355 15.7934 3.74215 17.5307 5.10571 18.8943C6.46928 20.2579 8.20656 21.1865 10.0979 21.5627C11.9892 21.9389 13.9496 21.7458 15.7312 21.0078C17.5127 20.2699 19.0355 19.0202 20.1068 17.4168C21.1782 15.8134 21.75 13.9284 21.75 12C21.7473 9.41498 20.7192 6.93661 18.8913 5.10872C17.0634 3.28084 14.585 2.25273 12 2.25ZM16.2806 10.2806L11.0306 15.5306C10.961 15.6004 10.8783 15.6557 10.7872 15.6934C10.6962 15.7312 10.5986 15.7506 10.5 15.7506C10.4014 15.7506 10.3038 15.7312 10.2128 15.6934C10.1218 15.6557 10.039 15.6004 9.96938 15.5306L7.71938 13.2806C7.57865 13.1399 7.49959 12.949 7.49959 12.75C7.49959 12.551 7.57865 12.3601 7.71938 12.2194C7.86011 12.0786 8.05098 11.9996 8.25 11.9996C8.44903 11.9996 8.6399 12.0786 8.78063 12.2194L10.5 13.9397L15.2194 9.21937C15.2891 9.14969 15.3718 9.09442 15.4628 9.0567C15.5539 9.01899 15.6515 8.99958 15.75 8.99958C15.8486 8.99958 15.9461 9.01899 16.0372 9.0567C16.1282 9.09442 16.2109 9.14969 16.2806 9.21937C16.3503 9.28906 16.4056 9.37178 16.4433 9.46283C16.481 9.55387 16.5004 9.65145 16.5004 9.75C16.5004 9.84855 16.481 9.94613 16.4433 10.0372C16.4056 10.1282 16.3503 10.2109 16.2806 10.2806Z" fill="#24A865"></path> </svg> </li><li class=""> <span class="option-label">C</span> <span class="option-data">29 th</span> </li><li class=""> <span class="option-label">D</span> <span class="option-data">No such term exists</span> </li> </ul>

answer:
<div class="solution">Given sequence is $20,19 \frac{1}{4}, 18 \frac{1}{2}, 17 \frac{3}{4}, \ldots$<br/>Which can be rewritten as $20, \frac{77}{4}, \frac{37}{2}, \frac{71}{4}, \ldots$<br/>This is an AP series<br/>Here, first term $\mathrm{a}=20$ and common difference $\mathrm{d}=-\frac{3}{4}$<br/>$\mathrm{n}^{\text {th }} \operatorname{term}=\mathrm{a}+(\mathrm{n}-1) \mathrm{d}=20+(n-1)\left(-\frac{3}{4}\right)$<br/>$=\frac{83}{4}-\frac{3}{4} n$<br/>For first negative term, $n^{\text {th }}$ term $   &lt; 0$<br/>$\Rightarrow \frac{83}{4}-\frac{3}{4} n &lt; 0 \Rightarrow 83 &lt; 3 n$<br/>$\Rightarrow n&gt;\frac{83}{3}=27.66$<br/>So, $\mathrm{n}$ should be 28 .<br/>Hence, 28 th term is first negative term.</div>


tags: ['Chemistry', 'General Organic Chemistry', 'BITSAT', 'BITSAT 2018']
source_db: MarksBatch2_P4.db
title:
which-test-among-the-following-is-not-used-for-the-distinction-among-1-0-2-0-and-3-0-aliphatic-amine

slug:
which-test-among-the-following-is-not-used-for-the-distinction-among-1-0-2-0-and-3-0-aliphatic-amine-31294

question:
<div class="question">Which test among the following is not used for the distinction among <math xmlns="http://www.w3.org/1998/Math/MathML"><msup><mn>1</mn><mn>0</mn></msup><mo>,</mo><mo> </mo><msup><mn>2</mn><mn>0</mn></msup></math> and <math xmlns="http://www.w3.org/1998/Math/MathML"><msup><mn>3</mn><mn>0</mn></msup></math> aliphatic amine.</div>

options:
<ul class="options"> <li class=""> <span class="option-label">A</span> <span class="option-data">Hinsberg's reagent test</span> </li><li class=""> <span class="option-label">B</span> <span class="option-data">Carbylamine reaction</span> </li><li class="correct"> <span class="option-label">C</span> <span class="option-data">Azo dye test</span> <svg fill="none" height="24" viewbox="0 0 24 24" width="24" xmlns="http://www.w3.org/2000/svg"> <path d="M12 2.25C10.0716 2.25 8.18657 2.82183 6.58319 3.89317C4.97982 4.96452 3.73013 6.48726 2.99218 8.26884C2.25422 10.0504 2.06114 12.0108 2.43735 13.9021C2.81355 15.7934 3.74215 17.5307 5.10571 18.8943C6.46928 20.2579 8.20656 21.1865 10.0979 21.5627C11.9892 21.9389 13.9496 21.7458 15.7312 21.0078C17.5127 20.2699 19.0355 19.0202 20.1068 17.4168C21.1782 15.8134 21.75 13.9284 21.75 12C21.7473 9.41498 20.7192 6.93661 18.8913 5.10872C17.0634 3.28084 14.585 2.25273 12 2.25ZM16.2806 10.2806L11.0306 15.5306C10.961 15.6004 10.8783 15.6557 10.7872 15.6934C10.6962 15.7312 10.5986 15.7506 10.5 15.7506C10.4014 15.7506 10.3038 15.7312 10.2128 15.6934C10.1218 15.6557 10.039 15.6004 9.96938 15.5306L7.71938 13.2806C7.57865 13.1399 7.49959 12.949 7.49959 12.75C7.49959 12.551 7.57865 12.3601 7.71938 12.2194C7.86011 12.0786 8.05098 11.9996 8.25 11.9996C8.44903 11.9996 8.6399 12.0786 8.78063 12.2194L10.5 13.9397L15.2194 9.21937C15.2891 9.14969 15.3718 9.09442 15.4628 9.0567C15.5539 9.01899 15.6515 8.99958 15.75 8.99958C15.8486 8.99958 15.9461 9.01899 16.0372 9.0567C16.1282 9.09442 16.2109 9.14969 16.2806 9.21937C16.3503 9.28906 16.4056 9.37178 16.4433 9.46283C16.481 9.55387 16.5004 9.65145 16.5004 9.75C16.5004 9.84855 16.481 9.94613 16.4433 10.0372C16.4056 10.1282 16.3503 10.2109 16.2806 10.2806Z" fill="#24A865"></path> </svg> </li><li class=""> <span class="option-label">D</span> <span class="option-data">Action with nitrous acid</span> </li> </ul>

correct_option:
<div class="correct-answer">
The correct answer is:
<span class="option-value">Azo dye test</span> </div>

answer:
<div class="solution"><p>Hinsberg test for the detection and distinction of primary, secondary, and tertiary amines in a given sample.</p><p>Carbylamine reaction is the reaction of a primary amine, chloroform and a base to synthesize isocyanides.</p><p>Azo dye test is not used for the detection of primary, secondary and tertiary aliphatic amines.</p><p>The Reaction of Amines with Nitrous Acid, primary and secondary amines react with nitrous acid forming arene diazonium salts and N-nitrosoamine respectively.</p></div>


title: which-tissue-is-not-correctly-related-to-its-fate-during-the-secondary-growth
slug: which-tissue-is-not-correctly-related-to-its-fate-during-the-secondary-growth-79439
tags: ['Biology', 'Anatomy of Flowering Plants', 'NEET']
source_db: MarksBatch2_P4.db
question:
<div class="question">Which tissue is not correctly related to its fate during the secondary growth?</div>

options:
<ul class="options"> <li class=""> <span class="option-label">A</span> <span class="option-data"><table border="1"><tr><td> Tissue</td><td> Fate during secondary growth</td></tr><tr><td> Secondary xylem</td><td> Produced in high amount</td></tr></table></span> </li><li class="correct"> <span class="option-label">B</span> <span class="option-data"><table border="1"><tr><td> Tissue</td><td> Fate during secondary growth</td></tr><tr><td> Primary phloem</td><td> Produced in low amount</td></tr></table></span> <svg fill="none" height="24" viewbox="0 0 24 24" width="24" xmlns="http://www.w3.org/2000/svg"> <path d="M12 2.25C10.0716 2.25 8.18657 2.82183 6.58319 3.89317C4.97982 4.96452 3.73013 6.48726 2.99218 8.26884C2.25422 10.0504 2.06114 12.0108 2.43735 13.9021C2.81355 15.7934 3.74215 17.5307 5.10571 18.8943C6.46928 20.2579 8.20656 21.1865 10.0979 21.5627C11.9892 21.9389 13.9496 21.7458 15.7312 21.0078C17.5127 20.2699 19.0355 19.0202 20.1068 17.4168C21.1782 15.8134 21.75 13.9284 21.75 12C21.7473 9.41498 20.7192 6.93661 18.8913 5.10872C17.0634 3.28084 14.585 2.25273 12 2.25ZM16.2806 10.2806L11.0306 15.5306C10.961 15.6004 10.8783 15.6557 10.7872 15.6934C10.6962 15.7312 10.5986 15.7506 10.5 15.7506C10.4014 15.7506 10.3038 15.7312 10.2128 15.6934C10.1218 15.6557 10.039 15.6004 9.96938 15.5306L7.71938 13.2806C7.57865 13.1399 7.49959 12.949 7.49959 12.75C7.49959 12.551 7.57865 12.3601 7.71938 12.2194C7.86011 12.0786 8.05098 11.9996 8.25 11.9996C8.44903 11.9996 8.6399 12.0786 8.78063 12.2194L10.5 13.9397L15.2194 9.21937C15.2891 9.14969 15.3718 9.09442 15.4628 9.0567C15.5539 9.01899 15.6515 8.99958 15.75 8.99958C15.8486 8.99958 15.9461 9.01899 16.0372 9.0567C16.1282 9.09442 16.2109 9.14969 16.2806 9.21937C16.3503 9.28906 16.4056 9.37178 16.4433 9.46283C16.481 9.55387 16.5004 9.65145 16.5004 9.75C16.5004 9.84855 16.481 9.94613 16.4433 10.0372C16.4056 10.1282 16.3503 10.2109 16.2806 10.2806Z" fill="#24A865"></path> </svg> </li><li class=""> <span class="option-label">C</span> <span class="option-data"><table border="1"><tr><td> Tissue</td><td> Fate during secondary growth</td></tr><tr><td> Cambial ring</td><td> Cut off secondary permanent tissue on both side</td></tr></table></span> </li><li class=""> <span class="option-label">D</span> <span class="option-data"><table border="1"><tr><td> Tissue</td><td> Fate during secondary growth</td></tr><tr><td> Secondary phloem</td><td> Synthesized on outer side</td></tr></table></span> </li> </ul>

correct_option:
<div class="correct-answer">
The correct answer is:
<span class="option-value"><table border="1"><tr><td> Tissue</td><td> Fate during secondary growth</td></tr><tr><td> Primary phloem</td><td> Produced in low amount</td></tr></table></span> </div>

answer:
<div class="solution">Mechanism in secondary growth in vascular region of dicot stem<br/><br/> <math><mn>1</mn><mo>.</mo></math>       Vascular cambium (intrafscicular cambium) alongwith interfascicular cambium forms a continuous ring of cambium.<br/><br/> <math><mn>2</mn><mo>.</mo></math>  Cambial ring becomes active and cut off secondary phloem towards outer side and secondary xylem towards inner side.<br/><br/> <math><mn>3</mn><mo>.</mo></math>       Secondary xylem is produced more in quantity as cambium is more active in its inner part.<br/><br/> <math><mn>4</mn><mo>.</mo></math>       When secondary growth repeats few more times, high amount of secondary xylem is accumulates which results in crushing of the primary phloem and most of the secondary phloem (although primary xylem may remain intact).<br/><br/> <math><mn>5</mn><mo>.</mo></math>       Cambium forms narrow bands of secondary phloem at some places which are termed as medullary rays.<br/><br/> <math><mn>6</mn><mo>.</mo></math>       Girth of plant increases.</div>


title: which-type-of-alcohol-can-react-with-hcl-without-the-need-for-a-catalyst
slug: which-type-of-alcohol-can-react-with-hcl-without-the-need-for-a-catalyst-40032
tags: ['Chemistry', 'Alcohols Phenols and Ethers', 'NEET']
source_db: MarksBatch2_P4.db
question:
<div class="question">Which type of alcohol can react with HCl without the need for a catalyst?</div>

options:
<ul class="options"> <li class=""> <span class="option-label">A</span> <span class="option-data">Primary alcohols</span> </li><li class=""> <span class="option-label">B</span> <span class="option-data">Secondary alcohols</span> </li><li class="correct"> <span class="option-label">C</span> <span class="option-data">Tertiary alcohols</span> <svg fill="none" height="24" viewbox="0 0 24 24" width="24" xmlns="http://www.w3.org/2000/svg"> <path d="M12 2.25C10.0716 2.25 8.18657 2.82183 6.58319 3.89317C4.97982 4.96452 3.73013 6.48726 2.99218 8.26884C2.25422 10.0504 2.06114 12.0108 2.43735 13.9021C2.81355 15.7934 3.74215 17.5307 5.10571 18.8943C6.46928 20.2579 8.20656 21.1865 10.0979 21.5627C11.9892 21.9389 13.9496 21.7458 15.7312 21.0078C17.5127 20.2699 19.0355 19.0202 20.1068 17.4168C21.1782 15.8134 21.75 13.9284 21.75 12C21.7473 9.41498 20.7192 6.93661 18.8913 5.10872C17.0634 3.28084 14.585 2.25273 12 2.25ZM16.2806 10.2806L11.0306 15.5306C10.961 15.6004 10.8783 15.6557 10.7872 15.6934C10.6962 15.7312 10.5986 15.7506 10.5 15.7506C10.4014 15.7506 10.3038 15.7312 10.2128 15.6934C10.1218 15.6557 10.039 15.6004 9.96938 15.5306L7.71938 13.2806C7.57865 13.1399 7.49959 12.949 7.49959 12.75C7.49959 12.551 7.57865 12.3601 7.71938 12.2194C7.86011 12.0786 8.05098 11.9996 8.25 11.9996C8.44903 11.9996 8.6399 12.0786 8.78063 12.2194L10.5 13.9397L15.2194 9.21937C15.2891 9.14969 15.3718 9.09442 15.4628 9.0567C15.5539 9.01899 15.6515 8.99958 15.75 8.99958C15.8486 8.99958 15.9461 9.01899 16.0372 9.0567C16.1282 9.09442 16.2109 9.14969 16.2806 9.21937C16.3503 9.28906 16.4056 9.37178 16.4433 9.46283C16.481 9.55387 16.5004 9.65145 16.5004 9.75C16.5004 9.84855 16.481 9.94613 16.4433 10.0372C16.4056 10.1282 16.3503 10.2109 16.2806 10.2806Z" fill="#24A865"></path> </svg> </li><li class=""> <span class="option-label">D</span> <span class="option-data">All alcohols require a catalyst.</span> </li> </ul>

correct_option:
<div class="correct-answer">
The correct answer is:
<span class="option-value">Tertiary alcohols</span> </div>

answer:
<div class="solution">Tertiary alcohols can react with concentrated HCl at room temperature without the need for a catalyst.</div>


title: which-type-of-alcohol-is-most-reactive-as-a-nucleophile-in-nucleophilic-substitution-reactions
tags: ['Chemistry', 'Alcohols Phenols and Ethers', 'NEET']
source_db: MarksBatch2_P4.db
slug:
which-type-of-alcohol-is-most-reactive-as-a-nucleophile-in-nucleophilic-substitution-reactions-76406

question:
<div class="question">Which type of alcohol is most reactive as a nucleophile in nucleophilic substitution reactions?</div>

options:
<ul class="options"> <li class=""> <span class="option-label">A</span> <span class="option-data">Primary alcohol</span> </li><li class=""> <span class="option-label">B</span> <span class="option-data">Secondary alcohol</span> </li><li class="correct"> <span class="option-label">C</span> <span class="option-data">Tertiary alcohol</span> <svg fill="none" height="24" viewbox="0 0 24 24" width="24" xmlns="http://www.w3.org/2000/svg"> <path d="M12 2.25C10.0716 2.25 8.18657 2.82183 6.58319 3.89317C4.97982 4.96452 3.73013 6.48726 2.99218 8.26884C2.25422 10.0504 2.06114 12.0108 2.43735 13.9021C2.81355 15.7934 3.74215 17.5307 5.10571 18.8943C6.46928 20.2579 8.20656 21.1865 10.0979 21.5627C11.9892 21.9389 13.9496 21.7458 15.7312 21.0078C17.5127 20.2699 19.0355 19.0202 20.1068 17.4168C21.1782 15.8134 21.75 13.9284 21.75 12C21.7473 9.41498 20.7192 6.93661 18.8913 5.10872C17.0634 3.28084 14.585 2.25273 12 2.25ZM16.2806 10.2806L11.0306 15.5306C10.961 15.6004 10.8783 15.6557 10.7872 15.6934C10.6962 15.7312 10.5986 15.7506 10.5 15.7506C10.4014 15.7506 10.3038 15.7312 10.2128 15.6934C10.1218 15.6557 10.039 15.6004 9.96938 15.5306L7.71938 13.2806C7.57865 13.1399 7.49959 12.949 7.49959 12.75C7.49959 12.551 7.57865 12.3601 7.71938 12.2194C7.86011 12.0786 8.05098 11.9996 8.25 11.9996C8.44903 11.9996 8.6399 12.0786 8.78063 12.2194L10.5 13.9397L15.2194 9.21937C15.2891 9.14969 15.3718 9.09442 15.4628 9.0567C15.5539 9.01899 15.6515 8.99958 15.75 8.99958C15.8486 8.99958 15.9461 9.01899 16.0372 9.0567C16.1282 9.09442 16.2109 9.14969 16.2806 9.21937C16.3503 9.28906 16.4056 9.37178 16.4433 9.46283C16.481 9.55387 16.5004 9.65145 16.5004 9.75C16.5004 9.84855 16.481 9.94613 16.4433 10.0372C16.4056 10.1282 16.3503 10.2109 16.2806 10.2806Z" fill="#24A865"></path> </svg> </li><li class=""> <span class="option-label">D</span> <span class="option-data">Aromatic alcohol</span> </li> </ul>

answer:
<div class="solution">Tertiary alcohols are typically more reactive as nucleophiles in nucleophilic substitution reactions due to reduced steric hindrance.</div>


tags: ['Chemistry', 'Alcohols Phenols and Ethers', 'NEET']
source_db: MarksBatch2_P4.db
title:
which-type-of-alcohol-is-the-most-challenging-to-dehydrate-among-primary-secondary-and-tertiary-alcohols

slug:
which-type-of-alcohol-is-the-most-challenging-to-dehydrate-among-primary-secondary-and-tertiary-alcohols-63130

question:
<div class="question">Which type of alcohol is the most challenging to dehydrate among primary, secondary, and tertiary alcohols?</div>

options:
<ul class="options"> <li class="correct"> <span class="option-label">A</span> <span class="option-data">Primary alcohol</span> <svg fill="none" height="24" viewbox="0 0 24 24" width="24" xmlns="http://www.w3.org/2000/svg"> <path d="M12 2.25C10.0716 2.25 8.18657 2.82183 6.58319 3.89317C4.97982 4.96452 3.73013 6.48726 2.99218 8.26884C2.25422 10.0504 2.06114 12.0108 2.43735 13.9021C2.81355 15.7934 3.74215 17.5307 5.10571 18.8943C6.46928 20.2579 8.20656 21.1865 10.0979 21.5627C11.9892 21.9389 13.9496 21.7458 15.7312 21.0078C17.5127 20.2699 19.0355 19.0202 20.1068 17.4168C21.1782 15.8134 21.75 13.9284 21.75 12C21.7473 9.41498 20.7192 6.93661 18.8913 5.10872C17.0634 3.28084 14.585 2.25273 12 2.25ZM16.2806 10.2806L11.0306 15.5306C10.961 15.6004 10.8783 15.6557 10.7872 15.6934C10.6962 15.7312 10.5986 15.7506 10.5 15.7506C10.4014 15.7506 10.3038 15.7312 10.2128 15.6934C10.1218 15.6557 10.039 15.6004 9.96938 15.5306L7.71938 13.2806C7.57865 13.1399 7.49959 12.949 7.49959 12.75C7.49959 12.551 7.57865 12.3601 7.71938 12.2194C7.86011 12.0786 8.05098 11.9996 8.25 11.9996C8.44903 11.9996 8.6399 12.0786 8.78063 12.2194L10.5 13.9397L15.2194 9.21937C15.2891 9.14969 15.3718 9.09442 15.4628 9.0567C15.5539 9.01899 15.6515 8.99958 15.75 8.99958C15.8486 8.99958 15.9461 9.01899 16.0372 9.0567C16.1282 9.09442 16.2109 9.14969 16.2806 9.21937C16.3503 9.28906 16.4056 9.37178 16.4433 9.46283C16.481 9.55387 16.5004 9.65145 16.5004 9.75C16.5004 9.84855 16.481 9.94613 16.4433 10.0372C16.4056 10.1282 16.3503 10.2109 16.2806 10.2806Z" fill="#24A865"></path> </svg> </li><li class=""> <span class="option-label">B</span> <span class="option-data">Secondary alcohol</span> </li><li class=""> <span class="option-label">C</span> <span class="option-data">Tertiary alcohol</span> </li><li class=""> <span class="option-label">D</span> <span class="option-data">Aromatic alcohol</span> </li> </ul>

answer:
<div class="solution">Primary alcohols are the most challenging to dehydrate among primary, secondary, and tertiary alcohols.</div>


title: which-type-of-alcohol-reacts-most-readily-with-a-given-haloacid
slug: which-type-of-alcohol-reacts-most-readily-with-a-given-haloacid-32972
question: <div class="question">Which type of alcohol reacts most readily with a given haloacid?</div>
tags: ['Chemistry', 'Alcohols Phenols and Ethers', 'NEET']
source_db: MarksBatch2_P4.db
options:
<ul class="options"> <li class=""> <span class="option-label">A</span> <span class="option-data">Primary alcohols</span> </li><li class=""> <span class="option-label">B</span> <span class="option-data">Secondary alcohols</span> </li><li class="correct"> <span class="option-label">C</span> <span class="option-data">Tertiary alcohols</span> <svg fill="none" height="24" viewbox="0 0 24 24" width="24" xmlns="http://www.w3.org/2000/svg"> <path d="M12 2.25C10.0716 2.25 8.18657 2.82183 6.58319 3.89317C4.97982 4.96452 3.73013 6.48726 2.99218 8.26884C2.25422 10.0504 2.06114 12.0108 2.43735 13.9021C2.81355 15.7934 3.74215 17.5307 5.10571 18.8943C6.46928 20.2579 8.20656 21.1865 10.0979 21.5627C11.9892 21.9389 13.9496 21.7458 15.7312 21.0078C17.5127 20.2699 19.0355 19.0202 20.1068 17.4168C21.1782 15.8134 21.75 13.9284 21.75 12C21.7473 9.41498 20.7192 6.93661 18.8913 5.10872C17.0634 3.28084 14.585 2.25273 12 2.25ZM16.2806 10.2806L11.0306 15.5306C10.961 15.6004 10.8783 15.6557 10.7872 15.6934C10.6962 15.7312 10.5986 15.7506 10.5 15.7506C10.4014 15.7506 10.3038 15.7312 10.2128 15.6934C10.1218 15.6557 10.039 15.6004 9.96938 15.5306L7.71938 13.2806C7.57865 13.1399 7.49959 12.949 7.49959 12.75C7.49959 12.551 7.57865 12.3601 7.71938 12.2194C7.86011 12.0786 8.05098 11.9996 8.25 11.9996C8.44903 11.9996 8.6399 12.0786 8.78063 12.2194L10.5 13.9397L15.2194 9.21937C15.2891 9.14969 15.3718 9.09442 15.4628 9.0567C15.5539 9.01899 15.6515 8.99958 15.75 8.99958C15.8486 8.99958 15.9461 9.01899 16.0372 9.0567C16.1282 9.09442 16.2109 9.14969 16.2806 9.21937C16.3503 9.28906 16.4056 9.37178 16.4433 9.46283C16.481 9.55387 16.5004 9.65145 16.5004 9.75C16.5004 9.84855 16.481 9.94613 16.4433 10.0372C16.4056 10.1282 16.3503 10.2109 16.2806 10.2806Z" fill="#24A865"></path> </svg> </li><li class=""> <span class="option-label">D</span> <span class="option-data">All alcohols react equally.</span> </li> </ul>

correct_option:
<div class="correct-answer">
The correct answer is:
<span class="option-value">Tertiary alcohols</span> </div>

answer:
<div class="solution">Tertiary alcohols are the most reactive among primary, secondary, and tertiary alcohols with a given haloacid.</div>


title: which-type-of-alcohol-undergoes-dehydration-when-passed-over-heated-copper
slug: which-type-of-alcohol-undergoes-dehydration-when-passed-over-heated-copper-56710
tags: ['Chemistry', 'Alcohols Phenols and Ethers', 'NEET']
answer: <div class="solution">Tertiary alcohols undergo dehydration when passed over heated copper.</div>
source_db: MarksBatch2_P4.db
question:
<div class="question">Which type of alcohol undergoes dehydration when passed over heated copper?</div>

options:
<ul class="options"> <li class=""> <span class="option-label">A</span> <span class="option-data">Primary alcohol</span> </li><li class=""> <span class="option-label">B</span> <span class="option-data">Secondary alcohol</span> </li><li class="correct"> <span class="option-label">C</span> <span class="option-data">Tertiary alcohol</span> <svg fill="none" height="24" viewbox="0 0 24 24" width="24" xmlns="http://www.w3.org/2000/svg"> <path d="M12 2.25C10.0716 2.25 8.18657 2.82183 6.58319 3.89317C4.97982 4.96452 3.73013 6.48726 2.99218 8.26884C2.25422 10.0504 2.06114 12.0108 2.43735 13.9021C2.81355 15.7934 3.74215 17.5307 5.10571 18.8943C6.46928 20.2579 8.20656 21.1865 10.0979 21.5627C11.9892 21.9389 13.9496 21.7458 15.7312 21.0078C17.5127 20.2699 19.0355 19.0202 20.1068 17.4168C21.1782 15.8134 21.75 13.9284 21.75 12C21.7473 9.41498 20.7192 6.93661 18.8913 5.10872C17.0634 3.28084 14.585 2.25273 12 2.25ZM16.2806 10.2806L11.0306 15.5306C10.961 15.6004 10.8783 15.6557 10.7872 15.6934C10.6962 15.7312 10.5986 15.7506 10.5 15.7506C10.4014 15.7506 10.3038 15.7312 10.2128 15.6934C10.1218 15.6557 10.039 15.6004 9.96938 15.5306L7.71938 13.2806C7.57865 13.1399 7.49959 12.949 7.49959 12.75C7.49959 12.551 7.57865 12.3601 7.71938 12.2194C7.86011 12.0786 8.05098 11.9996 8.25 11.9996C8.44903 11.9996 8.6399 12.0786 8.78063 12.2194L10.5 13.9397L15.2194 9.21937C15.2891 9.14969 15.3718 9.09442 15.4628 9.0567C15.5539 9.01899 15.6515 8.99958 15.75 8.99958C15.8486 8.99958 15.9461 9.01899 16.0372 9.0567C16.1282 9.09442 16.2109 9.14969 16.2806 9.21937C16.3503 9.28906 16.4056 9.37178 16.4433 9.46283C16.481 9.55387 16.5004 9.65145 16.5004 9.75C16.5004 9.84855 16.481 9.94613 16.4433 10.0372C16.4056 10.1282 16.3503 10.2109 16.2806 10.2806Z" fill="#24A865"></path> </svg> </li><li class=""> <span class="option-label">D</span> <span class="option-data">Aromatic alcohol</span> </li> </ul>


title: which-type-of-alkyl-group-is-suitable-for-the-preparation-of-ethers-via-bimolecular-dehydration
tags: ['Chemistry', 'Alcohols Phenols and Ethers', 'NEET']
source_db: MarksBatch2_P4.db
slug:
which-type-of-alkyl-group-is-suitable-for-the-preparation-of-ethers-via-bimolecular-dehydration-82049

question:
<div class="question">Which type of alkyl group is suitable for the preparation of ethers via bimolecular dehydration?</div>

options:
<ul class="options"> <li class="correct"> <span class="option-label">A</span> <span class="option-data">Primary</span> <svg fill="none" height="24" viewbox="0 0 24 24" width="24" xmlns="http://www.w3.org/2000/svg"> <path d="M12 2.25C10.0716 2.25 8.18657 2.82183 6.58319 3.89317C4.97982 4.96452 3.73013 6.48726 2.99218 8.26884C2.25422 10.0504 2.06114 12.0108 2.43735 13.9021C2.81355 15.7934 3.74215 17.5307 5.10571 18.8943C6.46928 20.2579 8.20656 21.1865 10.0979 21.5627C11.9892 21.9389 13.9496 21.7458 15.7312 21.0078C17.5127 20.2699 19.0355 19.0202 20.1068 17.4168C21.1782 15.8134 21.75 13.9284 21.75 12C21.7473 9.41498 20.7192 6.93661 18.8913 5.10872C17.0634 3.28084 14.585 2.25273 12 2.25ZM16.2806 10.2806L11.0306 15.5306C10.961 15.6004 10.8783 15.6557 10.7872 15.6934C10.6962 15.7312 10.5986 15.7506 10.5 15.7506C10.4014 15.7506 10.3038 15.7312 10.2128 15.6934C10.1218 15.6557 10.039 15.6004 9.96938 15.5306L7.71938 13.2806C7.57865 13.1399 7.49959 12.949 7.49959 12.75C7.49959 12.551 7.57865 12.3601 7.71938 12.2194C7.86011 12.0786 8.05098 11.9996 8.25 11.9996C8.44903 11.9996 8.6399 12.0786 8.78063 12.2194L10.5 13.9397L15.2194 9.21937C15.2891 9.14969 15.3718 9.09442 15.4628 9.0567C15.5539 9.01899 15.6515 8.99958 15.75 8.99958C15.8486 8.99958 15.9461 9.01899 16.0372 9.0567C16.1282 9.09442 16.2109 9.14969 16.2806 9.21937C16.3503 9.28906 16.4056 9.37178 16.4433 9.46283C16.481 9.55387 16.5004 9.65145 16.5004 9.75C16.5004 9.84855 16.481 9.94613 16.4433 10.0372C16.4056 10.1282 16.3503 10.2109 16.2806 10.2806Z" fill="#24A865"></path> </svg> </li><li class=""> <span class="option-label">B</span> <span class="option-data">Secondary</span> </li><li class=""> <span class="option-label">C</span> <span class="option-data">Tertiary</span> </li><li class=""> <span class="option-label">D</span> <span class="option-data">Quaternary</span> </li> </ul>

answer:
<div class="solution">Primary alkyl groups are suitable for the preparation of ethers via bimolecular dehydration.</div>


tags: ['Chemistry', 'Aldehydes, Ketones and Carboxylic Acids', 'NEET']
source_db: MarksBatch2_P4.db
title:
which-type-of-alkyl-groups-are-oxidized-to-carboxylic-acids-when-using-chromic-acid-or-potassium-permanganate

slug:
which-type-of-alkyl-groups-are-oxidized-to-carboxylic-acids-when-using-chromic-acid-or-potassium-permanganate-46156

question:
<div class="question">Which type of alkyl groups are oxidized to carboxylic acids when using chromic acid or potassium permanganate?</div>

options:
<ul class="options"> <li class="correct"> <span class="option-label">A</span> <span class="option-data">Primary and secondary alkyl groups</span> <svg fill="none" height="24" viewbox="0 0 24 24" width="24" xmlns="http://www.w3.org/2000/svg"> <path d="M12 2.25C10.0716 2.25 8.18657 2.82183 6.58319 3.89317C4.97982 4.96452 3.73013 6.48726 2.99218 8.26884C2.25422 10.0504 2.06114 12.0108 2.43735 13.9021C2.81355 15.7934 3.74215 17.5307 5.10571 18.8943C6.46928 20.2579 8.20656 21.1865 10.0979 21.5627C11.9892 21.9389 13.9496 21.7458 15.7312 21.0078C17.5127 20.2699 19.0355 19.0202 20.1068 17.4168C21.1782 15.8134 21.75 13.9284 21.75 12C21.7473 9.41498 20.7192 6.93661 18.8913 5.10872C17.0634 3.28084 14.585 2.25273 12 2.25ZM16.2806 10.2806L11.0306 15.5306C10.961 15.6004 10.8783 15.6557 10.7872 15.6934C10.6962 15.7312 10.5986 15.7506 10.5 15.7506C10.4014 15.7506 10.3038 15.7312 10.2128 15.6934C10.1218 15.6557 10.039 15.6004 9.96938 15.5306L7.71938 13.2806C7.57865 13.1399 7.49959 12.949 7.49959 12.75C7.49959 12.551 7.57865 12.3601 7.71938 12.2194C7.86011 12.0786 8.05098 11.9996 8.25 11.9996C8.44903 11.9996 8.6399 12.0786 8.78063 12.2194L10.5 13.9397L15.2194 9.21937C15.2891 9.14969 15.3718 9.09442 15.4628 9.0567C15.5539 9.01899 15.6515 8.99958 15.75 8.99958C15.8486 8.99958 15.9461 9.01899 16.0372 9.0567C16.1282 9.09442 16.2109 9.14969 16.2806 9.21937C16.3503 9.28906 16.4056 9.37178 16.4433 9.46283C16.481 9.55387 16.5004 9.65145 16.5004 9.75C16.5004 9.84855 16.481 9.94613 16.4433 10.0372C16.4056 10.1282 16.3503 10.2109 16.2806 10.2806Z" fill="#24A865"></path> </svg> </li><li class=""> <span class="option-label">B</span> <span class="option-data">Tertiary alkyl groups</span> </li><li class=""> <span class="option-label">C</span> <span class="option-data">Alkynes</span> </li><li class=""> <span class="option-label">D</span> <span class="option-data">Alkenes</span> </li> </ul>

correct_option:
<div class="correct-answer">
The correct answer is:
<span class="option-value">Primary and secondary alkyl groups</span> </div>

answer:
<div class="solution">Chromic acid or potassium permanganate oxidation typically converts primary and secondary alkyl groups to carboxylic acids.</div>


title: which-type-of-alkyl-halide-is-preferred-for-the-williamson-ether-synthesis-to-obtain-better-results
tags: ['Chemistry', 'Alcohols Phenols and Ethers', 'NEET']
source_db: MarksBatch2_P4.db
slug:
which-type-of-alkyl-halide-is-preferred-for-the-williamson-ether-synthesis-to-obtain-better-results-30139

question:
<div class="question">Which type of alkyl halide is preferred for the Williamson ether synthesis to obtain better results?</div>

options:
<ul class="options"> <li class="correct"> <span class="option-label">A</span> <span class="option-data">Primary alkyl halides</span> <svg fill="none" height="24" viewbox="0 0 24 24" width="24" xmlns="http://www.w3.org/2000/svg"> <path d="M12 2.25C10.0716 2.25 8.18657 2.82183 6.58319 3.89317C4.97982 4.96452 3.73013 6.48726 2.99218 8.26884C2.25422 10.0504 2.06114 12.0108 2.43735 13.9021C2.81355 15.7934 3.74215 17.5307 5.10571 18.8943C6.46928 20.2579 8.20656 21.1865 10.0979 21.5627C11.9892 21.9389 13.9496 21.7458 15.7312 21.0078C17.5127 20.2699 19.0355 19.0202 20.1068 17.4168C21.1782 15.8134 21.75 13.9284 21.75 12C21.7473 9.41498 20.7192 6.93661 18.8913 5.10872C17.0634 3.28084 14.585 2.25273 12 2.25ZM16.2806 10.2806L11.0306 15.5306C10.961 15.6004 10.8783 15.6557 10.7872 15.6934C10.6962 15.7312 10.5986 15.7506 10.5 15.7506C10.4014 15.7506 10.3038 15.7312 10.2128 15.6934C10.1218 15.6557 10.039 15.6004 9.96938 15.5306L7.71938 13.2806C7.57865 13.1399 7.49959 12.949 7.49959 12.75C7.49959 12.551 7.57865 12.3601 7.71938 12.2194C7.86011 12.0786 8.05098 11.9996 8.25 11.9996C8.44903 11.9996 8.6399 12.0786 8.78063 12.2194L10.5 13.9397L15.2194 9.21937C15.2891 9.14969 15.3718 9.09442 15.4628 9.0567C15.5539 9.01899 15.6515 8.99958 15.75 8.99958C15.8486 8.99958 15.9461 9.01899 16.0372 9.0567C16.1282 9.09442 16.2109 9.14969 16.2806 9.21937C16.3503 9.28906 16.4056 9.37178 16.4433 9.46283C16.481 9.55387 16.5004 9.65145 16.5004 9.75C16.5004 9.84855 16.481 9.94613 16.4433 10.0372C16.4056 10.1282 16.3503 10.2109 16.2806 10.2806Z" fill="#24A865"></path> </svg> </li><li class=""> <span class="option-label">B</span> <span class="option-data">Secondary alkyl halides</span> </li><li class=""> <span class="option-label">C</span> <span class="option-data">Tertiary alkyl halides</span> </li><li class=""> <span class="option-label">D</span> <span class="option-data">Aromatic alkyl halides</span> </li> </ul>

correct_option:
<div class="correct-answer">
The correct answer is:
<span class="option-value">Primary alkyl halides</span> </div>

answer:
<div class="solution">Primary alkyl halides are preferred in the Williamson ether synthesis to obtain better results. Secondary and tertiary alkyl halides tend to undergo elimination reactions instead of substitution reactions.</div>


title: which-type-of-alkyl-halide-reacts-most-rapidly-in-s-n-2-reactions
slug: which-type-of-alkyl-halide-reacts-most-rapidly-in-s-n-2-reactions-74509
tags: ['Chemistry', 'Haloalkanes and Haloarenes', 'NEET']
source_db: MarksBatch2_P4.db
question:
<div class="question">Which type of alkyl halide reacts most rapidly in S<sub>N</sub>2 reactions?</div>

options:
<ul class="options"> <li class="correct"> <span class="option-label">A</span> <span class="option-data">Methyl halides</span> <svg fill="none" height="24" viewbox="0 0 24 24" width="24" xmlns="http://www.w3.org/2000/svg"> <path d="M12 2.25C10.0716 2.25 8.18657 2.82183 6.58319 3.89317C4.97982 4.96452 3.73013 6.48726 2.99218 8.26884C2.25422 10.0504 2.06114 12.0108 2.43735 13.9021C2.81355 15.7934 3.74215 17.5307 5.10571 18.8943C6.46928 20.2579 8.20656 21.1865 10.0979 21.5627C11.9892 21.9389 13.9496 21.7458 15.7312 21.0078C17.5127 20.2699 19.0355 19.0202 20.1068 17.4168C21.1782 15.8134 21.75 13.9284 21.75 12C21.7473 9.41498 20.7192 6.93661 18.8913 5.10872C17.0634 3.28084 14.585 2.25273 12 2.25ZM16.2806 10.2806L11.0306 15.5306C10.961 15.6004 10.8783 15.6557 10.7872 15.6934C10.6962 15.7312 10.5986 15.7506 10.5 15.7506C10.4014 15.7506 10.3038 15.7312 10.2128 15.6934C10.1218 15.6557 10.039 15.6004 9.96938 15.5306L7.71938 13.2806C7.57865 13.1399 7.49959 12.949 7.49959 12.75C7.49959 12.551 7.57865 12.3601 7.71938 12.2194C7.86011 12.0786 8.05098 11.9996 8.25 11.9996C8.44903 11.9996 8.6399 12.0786 8.78063 12.2194L10.5 13.9397L15.2194 9.21937C15.2891 9.14969 15.3718 9.09442 15.4628 9.0567C15.5539 9.01899 15.6515 8.99958 15.75 8.99958C15.8486 8.99958 15.9461 9.01899 16.0372 9.0567C16.1282 9.09442 16.2109 9.14969 16.2806 9.21937C16.3503 9.28906 16.4056 9.37178 16.4433 9.46283C16.481 9.55387 16.5004 9.65145 16.5004 9.75C16.5004 9.84855 16.481 9.94613 16.4433 10.0372C16.4056 10.1282 16.3503 10.2109 16.2806 10.2806Z" fill="#24A865"></path> </svg> </li><li class=""> <span class="option-label">B</span> <span class="option-data">Primary halides</span> </li><li class=""> <span class="option-label">C</span> <span class="option-data">Secondary halides</span> </li><li class=""> <span class="option-label">D</span> <span class="option-data">Tertiary halides</span> </li> </ul>

correct_option:
<div class="correct-answer">
The correct answer is:
<span class="option-value">Methyl halides</span> </div>

answer:
<div class="solution">Methyl halides react most rapidly in S<sub>N</sub>2 reactions because they have only three small hydrogen atoms and no bulky substituents hindering the nucleophile's approach.</div>


tags: ['Chemistry', 'Amines', 'NEET']
source_db: MarksBatch2_P4.db
title:
which-type-of-amine-is-obtained-as-the-major-product-in-ammonolysis-when-a-large-excess-of-ammonia-is-used

slug:
which-type-of-amine-is-obtained-as-the-major-product-in-ammonolysis-when-a-large-excess-of-ammonia-is-used-20905

question:
<div class="question">Which type of amine is obtained as the major product in ammonolysis when a large excess of ammonia is used?</div>

options:
<ul class="options"> <li class="correct"> <span class="option-label">A</span> <span class="option-data">Primary amine</span> <svg fill="none" height="24" viewbox="0 0 24 24" width="24" xmlns="http://www.w3.org/2000/svg"> <path d="M12 2.25C10.0716 2.25 8.18657 2.82183 6.58319 3.89317C4.97982 4.96452 3.73013 6.48726 2.99218 8.26884C2.25422 10.0504 2.06114 12.0108 2.43735 13.9021C2.81355 15.7934 3.74215 17.5307 5.10571 18.8943C6.46928 20.2579 8.20656 21.1865 10.0979 21.5627C11.9892 21.9389 13.9496 21.7458 15.7312 21.0078C17.5127 20.2699 19.0355 19.0202 20.1068 17.4168C21.1782 15.8134 21.75 13.9284 21.75 12C21.7473 9.41498 20.7192 6.93661 18.8913 5.10872C17.0634 3.28084 14.585 2.25273 12 2.25ZM16.2806 10.2806L11.0306 15.5306C10.961 15.6004 10.8783 15.6557 10.7872 15.6934C10.6962 15.7312 10.5986 15.7506 10.5 15.7506C10.4014 15.7506 10.3038 15.7312 10.2128 15.6934C10.1218 15.6557 10.039 15.6004 9.96938 15.5306L7.71938 13.2806C7.57865 13.1399 7.49959 12.949 7.49959 12.75C7.49959 12.551 7.57865 12.3601 7.71938 12.2194C7.86011 12.0786 8.05098 11.9996 8.25 11.9996C8.44903 11.9996 8.6399 12.0786 8.78063 12.2194L10.5 13.9397L15.2194 9.21937C15.2891 9.14969 15.3718 9.09442 15.4628 9.0567C15.5539 9.01899 15.6515 8.99958 15.75 8.99958C15.8486 8.99958 15.9461 9.01899 16.0372 9.0567C16.1282 9.09442 16.2109 9.14969 16.2806 9.21937C16.3503 9.28906 16.4056 9.37178 16.4433 9.46283C16.481 9.55387 16.5004 9.65145 16.5004 9.75C16.5004 9.84855 16.481 9.94613 16.4433 10.0372C16.4056 10.1282 16.3503 10.2109 16.2806 10.2806Z" fill="#24A865"></path> </svg> </li><li class=""> <span class="option-label">B</span> <span class="option-data">Secondary amine</span> </li><li class=""> <span class="option-label">C</span> <span class="option-data">Tertiary amine</span> </li><li class=""> <span class="option-label">D</span> <span class="option-data">Quaternary ammonium salt</span> </li> </ul>

answer:
<div class="solution">When a large excess of ammonia is used in ammonolysis, the primary amine is obtained as the major product.</div>


title: which-type-of-amines-does-not-react-with-benzene-sulfonyl-chloride
slug: which-type-of-amines-does-not-react-with-benzene-sulfonyl-chloride-31976
question: <div class="question">Which type of amines does not react with benzene sulfonyl chloride?</div>
tags: ['Chemistry', 'Amines', 'NEET']
answer: <div class="solution">Tertiary amines do not react with benzenesulfonyl chloride.</div>
source_db: MarksBatch2_P4.db
options:
<ul class="options"> <li class=""> <span class="option-label">A</span> <span class="option-data">Primary amines</span> </li><li class=""> <span class="option-label">B</span> <span class="option-data">Secondary amines</span> </li><li class="correct"> <span class="option-label">C</span> <span class="option-data">Tertiary amines</span> <svg fill="none" height="24" viewbox="0 0 24 24" width="24" xmlns="http://www.w3.org/2000/svg"> <path d="M12 2.25C10.0716 2.25 8.18657 2.82183 6.58319 3.89317C4.97982 4.96452 3.73013 6.48726 2.99218 8.26884C2.25422 10.0504 2.06114 12.0108 2.43735 13.9021C2.81355 15.7934 3.74215 17.5307 5.10571 18.8943C6.46928 20.2579 8.20656 21.1865 10.0979 21.5627C11.9892 21.9389 13.9496 21.7458 15.7312 21.0078C17.5127 20.2699 19.0355 19.0202 20.1068 17.4168C21.1782 15.8134 21.75 13.9284 21.75 12C21.7473 9.41498 20.7192 6.93661 18.8913 5.10872C17.0634 3.28084 14.585 2.25273 12 2.25ZM16.2806 10.2806L11.0306 15.5306C10.961 15.6004 10.8783 15.6557 10.7872 15.6934C10.6962 15.7312 10.5986 15.7506 10.5 15.7506C10.4014 15.7506 10.3038 15.7312 10.2128 15.6934C10.1218 15.6557 10.039 15.6004 9.96938 15.5306L7.71938 13.2806C7.57865 13.1399 7.49959 12.949 7.49959 12.75C7.49959 12.551 7.57865 12.3601 7.71938 12.2194C7.86011 12.0786 8.05098 11.9996 8.25 11.9996C8.44903 11.9996 8.6399 12.0786 8.78063 12.2194L10.5 13.9397L15.2194 9.21937C15.2891 9.14969 15.3718 9.09442 15.4628 9.0567C15.5539 9.01899 15.6515 8.99958 15.75 8.99958C15.8486 8.99958 15.9461 9.01899 16.0372 9.0567C16.1282 9.09442 16.2109 9.14969 16.2806 9.21937C16.3503 9.28906 16.4056 9.37178 16.4433 9.46283C16.481 9.55387 16.5004 9.65145 16.5004 9.75C16.5004 9.84855 16.481 9.94613 16.4433 10.0372C16.4056 10.1282 16.3503 10.2109 16.2806 10.2806Z" fill="#24A865"></path> </svg> </li><li class=""> <span class="option-label">D</span> <span class="option-data">All types of amines react with benzenesulfonyl chloride</span> </li> </ul>

correct_option:
<div class="correct-answer">
The correct answer is:
<span class="option-value">Tertiary amines</span> </div>


title: which-type-of-amines-reacts-with-benzenesulfonyl-chloride-to-form-sulphonamides
slug: which-type-of-amines-reacts-with-benzenesulfonyl-chloride-to-form-sulphonamides-12275
tags: ['Chemistry', 'Amines', 'NEET']
source_db: MarksBatch2_P4.db
question:
<div class="question">Which type of amines reacts with benzenesulfonyl chloride to form sulphonamides?</div>

options:
<ul class="options"> <li class=""> <span class="option-label">A</span> <span class="option-data">Primary amines</span> </li><li class=""> <span class="option-label">B</span> <span class="option-data">Secondary amines</span> </li><li class=""> <span class="option-label">C</span> <span class="option-data">Tertiary amines</span> </li><li class="correct"> <span class="option-label">D</span> <span class="option-data">All types of amines</span> <svg fill="none" height="24" viewbox="0 0 24 24" width="24" xmlns="http://www.w3.org/2000/svg"> <path d="M12 2.25C10.0716 2.25 8.18657 2.82183 6.58319 3.89317C4.97982 4.96452 3.73013 6.48726 2.99218 8.26884C2.25422 10.0504 2.06114 12.0108 2.43735 13.9021C2.81355 15.7934 3.74215 17.5307 5.10571 18.8943C6.46928 20.2579 8.20656 21.1865 10.0979 21.5627C11.9892 21.9389 13.9496 21.7458 15.7312 21.0078C17.5127 20.2699 19.0355 19.0202 20.1068 17.4168C21.1782 15.8134 21.75 13.9284 21.75 12C21.7473 9.41498 20.7192 6.93661 18.8913 5.10872C17.0634 3.28084 14.585 2.25273 12 2.25ZM16.2806 10.2806L11.0306 15.5306C10.961 15.6004 10.8783 15.6557 10.7872 15.6934C10.6962 15.7312 10.5986 15.7506 10.5 15.7506C10.4014 15.7506 10.3038 15.7312 10.2128 15.6934C10.1218 15.6557 10.039 15.6004 9.96938 15.5306L7.71938 13.2806C7.57865 13.1399 7.49959 12.949 7.49959 12.75C7.49959 12.551 7.57865 12.3601 7.71938 12.2194C7.86011 12.0786 8.05098 11.9996 8.25 11.9996C8.44903 11.9996 8.6399 12.0786 8.78063 12.2194L10.5 13.9397L15.2194 9.21937C15.2891 9.14969 15.3718 9.09442 15.4628 9.0567C15.5539 9.01899 15.6515 8.99958 15.75 8.99958C15.8486 8.99958 15.9461 9.01899 16.0372 9.0567C16.1282 9.09442 16.2109 9.14969 16.2806 9.21937C16.3503 9.28906 16.4056 9.37178 16.4433 9.46283C16.481 9.55387 16.5004 9.65145 16.5004 9.75C16.5004 9.84855 16.481 9.94613 16.4433 10.0372C16.4056 10.1282 16.3503 10.2109 16.2806 10.2806Z" fill="#24A865"></path> </svg> </li> </ul>

correct_option:
<div class="correct-answer">
The correct answer is:
<span class="option-value">All types of amines</span> </div>

answer:
<div class="solution">Benzenesulfonyl chloride reacts with both primary and secondary amines to form sulphonamides. Tertiary amines do not react.</div>


title: which-type-of-carbocation-is-the-most-stable-among-primary-secondary-and-tertiary-carbocations
tags: ['Chemistry', 'Alcohols Phenols and Ethers', 'NEET']
source_db: MarksBatch2_P4.db
slug:
which-type-of-carbocation-is-the-most-stable-among-primary-secondary-and-tertiary-carbocations-48284

question:
<div class="question">Which type of carbocation is the most stable among primary, secondary, and tertiary carbocations?</div>

options:
<ul class="options"> <li class=""> <span class="option-label">A</span> <span class="option-data">Primary carbocation</span> </li><li class=""> <span class="option-label">B</span> <span class="option-data">Secondary carbocation</span> </li><li class="correct"> <span class="option-label">C</span> <span class="option-data">Tertiary carbocation</span> <svg fill="none" height="24" viewbox="0 0 24 24" width="24" xmlns="http://www.w3.org/2000/svg"> <path d="M12 2.25C10.0716 2.25 8.18657 2.82183 6.58319 3.89317C4.97982 4.96452 3.73013 6.48726 2.99218 8.26884C2.25422 10.0504 2.06114 12.0108 2.43735 13.9021C2.81355 15.7934 3.74215 17.5307 5.10571 18.8943C6.46928 20.2579 8.20656 21.1865 10.0979 21.5627C11.9892 21.9389 13.9496 21.7458 15.7312 21.0078C17.5127 20.2699 19.0355 19.0202 20.1068 17.4168C21.1782 15.8134 21.75 13.9284 21.75 12C21.7473 9.41498 20.7192 6.93661 18.8913 5.10872C17.0634 3.28084 14.585 2.25273 12 2.25ZM16.2806 10.2806L11.0306 15.5306C10.961 15.6004 10.8783 15.6557 10.7872 15.6934C10.6962 15.7312 10.5986 15.7506 10.5 15.7506C10.4014 15.7506 10.3038 15.7312 10.2128 15.6934C10.1218 15.6557 10.039 15.6004 9.96938 15.5306L7.71938 13.2806C7.57865 13.1399 7.49959 12.949 7.49959 12.75C7.49959 12.551 7.57865 12.3601 7.71938 12.2194C7.86011 12.0786 8.05098 11.9996 8.25 11.9996C8.44903 11.9996 8.6399 12.0786 8.78063 12.2194L10.5 13.9397L15.2194 9.21937C15.2891 9.14969 15.3718 9.09442 15.4628 9.0567C15.5539 9.01899 15.6515 8.99958 15.75 8.99958C15.8486 8.99958 15.9461 9.01899 16.0372 9.0567C16.1282 9.09442 16.2109 9.14969 16.2806 9.21937C16.3503 9.28906 16.4056 9.37178 16.4433 9.46283C16.481 9.55387 16.5004 9.65145 16.5004 9.75C16.5004 9.84855 16.481 9.94613 16.4433 10.0372C16.4056 10.1282 16.3503 10.2109 16.2806 10.2806Z" fill="#24A865"></path> </svg> </li><li class=""> <span class="option-label">D</span> <span class="option-data">Aromatic carbocation</span> </li> </ul>

correct_option:
<div class="correct-answer">
The correct answer is:
<span class="option-value">Tertiary carbocation</span> </div>

answer:
<div class="solution">Tertiary carbocations are the most stable among primary, secondary, and tertiary carbocations.</div>


tags: ['Chemistry', 'Electrochemistry', 'NEET']
source_db: MarksBatch2_P4.db
title:
which-type-of-cells-are-designed-to-convert-the-energy-of-combustion-of-fuels-into-electrical-energy

slug:
which-type-of-cells-are-designed-to-convert-the-energy-of-combustion-of-fuels-into-electrical-energy-47583

question:
<div class="question">Which type of cells are designed to convert the energy of combustion of fuels into electrical energy?</div>

options:
<ul class="options"> <li class=""> <span class="option-label">A</span> <span class="option-data">Secondary batteries</span> </li><li class=""> <span class="option-label">B</span> <span class="option-data">Thermal cells</span> </li><li class=""> <span class="option-label">C</span> <span class="option-data">Hydrogen cells</span> </li><li class="correct"> <span class="option-label">D</span> <span class="option-data">Fuel cells</span> <svg fill="none" height="24" viewbox="0 0 24 24" width="24" xmlns="http://www.w3.org/2000/svg"> <path d="M12 2.25C10.0716 2.25 8.18657 2.82183 6.58319 3.89317C4.97982 4.96452 3.73013 6.48726 2.99218 8.26884C2.25422 10.0504 2.06114 12.0108 2.43735 13.9021C2.81355 15.7934 3.74215 17.5307 5.10571 18.8943C6.46928 20.2579 8.20656 21.1865 10.0979 21.5627C11.9892 21.9389 13.9496 21.7458 15.7312 21.0078C17.5127 20.2699 19.0355 19.0202 20.1068 17.4168C21.1782 15.8134 21.75 13.9284 21.75 12C21.7473 9.41498 20.7192 6.93661 18.8913 5.10872C17.0634 3.28084 14.585 2.25273 12 2.25ZM16.2806 10.2806L11.0306 15.5306C10.961 15.6004 10.8783 15.6557 10.7872 15.6934C10.6962 15.7312 10.5986 15.7506 10.5 15.7506C10.4014 15.7506 10.3038 15.7312 10.2128 15.6934C10.1218 15.6557 10.039 15.6004 9.96938 15.5306L7.71938 13.2806C7.57865 13.1399 7.49959 12.949 7.49959 12.75C7.49959 12.551 7.57865 12.3601 7.71938 12.2194C7.86011 12.0786 8.05098 11.9996 8.25 11.9996C8.44903 11.9996 8.6399 12.0786 8.78063 12.2194L10.5 13.9397L15.2194 9.21937C15.2891 9.14969 15.3718 9.09442 15.4628 9.0567C15.5539 9.01899 15.6515 8.99958 15.75 8.99958C15.8486 8.99958 15.9461 9.01899 16.0372 9.0567C16.1282 9.09442 16.2109 9.14969 16.2806 9.21937C16.3503 9.28906 16.4056 9.37178 16.4433 9.46283C16.481 9.55387 16.5004 9.65145 16.5004 9.75C16.5004 9.84855 16.481 9.94613 16.4433 10.0372C16.4056 10.1282 16.3503 10.2109 16.2806 10.2806Z" fill="#24A865"></path> </svg> </li> </ul>

correct_option:
<div class="correct-answer">
The correct answer is:
<span class="option-value">Fuel cells</span> </div>

answer:
<div class="solution">Galvanic cells that are designed to convert the energy of combustion of fuels like hydrogen, methane, methanol, etc. directly into electrical energy are called fuel cells.</div>


title: which-type-of-immunoglobin-isare-abundantly-found-in-foetus
slug: which-type-of-immunoglobin-isare-abundantly-found-in-foetus-92686
question: <div class="question">Which type of immunoglobin is/are abundantly found in foetus?</div>
tags: ['Biology', 'Human Health and Diseases', 'JIPMER', 'JIPMER 2017']
correct_option: <div class="correct-answer"> The correct answer is: <span class="option-value">IgG</span> </div>
source_db: MarksBatch2_P4.db
options:
<ul class="options"> <li class=""> <span class="option-label">A</span> <span class="option-data">IgE</span> </li><li class="correct"> <span class="option-label">B</span> <span class="option-data">IgG</span> <svg fill="none" height="24" viewbox="0 0 24 24" width="24" xmlns="http://www.w3.org/2000/svg"> <path d="M12 2.25C10.0716 2.25 8.18657 2.82183 6.58319 3.89317C4.97982 4.96452 3.73013 6.48726 2.99218 8.26884C2.25422 10.0504 2.06114 12.0108 2.43735 13.9021C2.81355 15.7934 3.74215 17.5307 5.10571 18.8943C6.46928 20.2579 8.20656 21.1865 10.0979 21.5627C11.9892 21.9389 13.9496 21.7458 15.7312 21.0078C17.5127 20.2699 19.0355 19.0202 20.1068 17.4168C21.1782 15.8134 21.75 13.9284 21.75 12C21.7473 9.41498 20.7192 6.93661 18.8913 5.10872C17.0634 3.28084 14.585 2.25273 12 2.25ZM16.2806 10.2806L11.0306 15.5306C10.961 15.6004 10.8783 15.6557 10.7872 15.6934C10.6962 15.7312 10.5986 15.7506 10.5 15.7506C10.4014 15.7506 10.3038 15.7312 10.2128 15.6934C10.1218 15.6557 10.039 15.6004 9.96938 15.5306L7.71938 13.2806C7.57865 13.1399 7.49959 12.949 7.49959 12.75C7.49959 12.551 7.57865 12.3601 7.71938 12.2194C7.86011 12.0786 8.05098 11.9996 8.25 11.9996C8.44903 11.9996 8.6399 12.0786 8.78063 12.2194L10.5 13.9397L15.2194 9.21937C15.2891 9.14969 15.3718 9.09442 15.4628 9.0567C15.5539 9.01899 15.6515 8.99958 15.75 8.99958C15.8486 8.99958 15.9461 9.01899 16.0372 9.0567C16.1282 9.09442 16.2109 9.14969 16.2806 9.21937C16.3503 9.28906 16.4056 9.37178 16.4433 9.46283C16.481 9.55387 16.5004 9.65145 16.5004 9.75C16.5004 9.84855 16.481 9.94613 16.4433 10.0372C16.4056 10.1282 16.3503 10.2109 16.2806 10.2806Z" fill="#24A865"></path> </svg> </li><li class=""> <span class="option-label">C</span> <span class="option-data">IgM</span> </li><li class=""> <span class="option-label">D</span> <span class="option-data">IgD</span> </li> </ul>

answer:
<div class="solution">IgG is the most abundant antibody in foetus as it is the only one which can cross placental barrier from mother to reach child and provides immune protection to it.</div>


title: which-type-of-ligand-can-bind-through-two-donor-atoms
slug: which-type-of-ligand-can-bind-through-two-donor-atoms-62787
question: <div class="question">Which type of ligand can bind through two donor atoms?</div>
tags: ['Chemistry', 'Coordination Compounds', 'NEET']
answer: <div class="solution">Didendate ligands can bind to a metal ion through two donor atoms.</div>
source_db: MarksBatch2_P4.db
options:
<ul class="options"> <li class=""> <span class="option-label">A</span> <span class="option-data">Hexadentate</span> </li><li class=""> <span class="option-label">B</span> <span class="option-data">Unidentate</span> </li><li class="correct"> <span class="option-label">C</span> <span class="option-data">Didendate</span> <svg fill="none" height="24" viewbox="0 0 24 24" width="24" xmlns="http://www.w3.org/2000/svg"> <path d="M12 2.25C10.0716 2.25 8.18657 2.82183 6.58319 3.89317C4.97982 4.96452 3.73013 6.48726 2.99218 8.26884C2.25422 10.0504 2.06114 12.0108 2.43735 13.9021C2.81355 15.7934 3.74215 17.5307 5.10571 18.8943C6.46928 20.2579 8.20656 21.1865 10.0979 21.5627C11.9892 21.9389 13.9496 21.7458 15.7312 21.0078C17.5127 20.2699 19.0355 19.0202 20.1068 17.4168C21.1782 15.8134 21.75 13.9284 21.75 12C21.7473 9.41498 20.7192 6.93661 18.8913 5.10872C17.0634 3.28084 14.585 2.25273 12 2.25ZM16.2806 10.2806L11.0306 15.5306C10.961 15.6004 10.8783 15.6557 10.7872 15.6934C10.6962 15.7312 10.5986 15.7506 10.5 15.7506C10.4014 15.7506 10.3038 15.7312 10.2128 15.6934C10.1218 15.6557 10.039 15.6004 9.96938 15.5306L7.71938 13.2806C7.57865 13.1399 7.49959 12.949 7.49959 12.75C7.49959 12.551 7.57865 12.3601 7.71938 12.2194C7.86011 12.0786 8.05098 11.9996 8.25 11.9996C8.44903 11.9996 8.6399 12.0786 8.78063 12.2194L10.5 13.9397L15.2194 9.21937C15.2891 9.14969 15.3718 9.09442 15.4628 9.0567C15.5539 9.01899 15.6515 8.99958 15.75 8.99958C15.8486 8.99958 15.9461 9.01899 16.0372 9.0567C16.1282 9.09442 16.2109 9.14969 16.2806 9.21937C16.3503 9.28906 16.4056 9.37178 16.4433 9.46283C16.481 9.55387 16.5004 9.65145 16.5004 9.75C16.5004 9.84855 16.481 9.94613 16.4433 10.0372C16.4056 10.1282 16.3503 10.2109 16.2806 10.2806Z" fill="#24A865"></path> </svg> </li><li class=""> <span class="option-label">D</span> <span class="option-data">Polydentate</span> </li> </ul>


title: which-type-of-rna-is-most-abundant-in-a-cell
slug: which-type-of-rna-is-most-abundant-in-a-cell-75969
question: <div class="question">Which type of RNA is most abundant in a cell?</div>
tags: ['Chemistry', 'Biomolecules', 'NEET']
answer: <div class="solution">Ribosomal RNA (r-RN</div>
source_db: MarksBatch2_P4.db
options:
<ul class="options"> <li class=""> <span class="option-label">A</span> <span class="option-data">Messenger RNA (m-RN<br/>A)</span> </li><li class="correct"> <span class="option-label">B</span> <span class="option-data">Ribosomal RNA (r-RN<br/>A)</span> <svg fill="none" height="24" viewbox="0 0 24 24" width="24" xmlns="http://www.w3.org/2000/svg"> <path d="M12 2.25C10.0716 2.25 8.18657 2.82183 6.58319 3.89317C4.97982 4.96452 3.73013 6.48726 2.99218 8.26884C2.25422 10.0504 2.06114 12.0108 2.43735 13.9021C2.81355 15.7934 3.74215 17.5307 5.10571 18.8943C6.46928 20.2579 8.20656 21.1865 10.0979 21.5627C11.9892 21.9389 13.9496 21.7458 15.7312 21.0078C17.5127 20.2699 19.0355 19.0202 20.1068 17.4168C21.1782 15.8134 21.75 13.9284 21.75 12C21.7473 9.41498 20.7192 6.93661 18.8913 5.10872C17.0634 3.28084 14.585 2.25273 12 2.25ZM16.2806 10.2806L11.0306 15.5306C10.961 15.6004 10.8783 15.6557 10.7872 15.6934C10.6962 15.7312 10.5986 15.7506 10.5 15.7506C10.4014 15.7506 10.3038 15.7312 10.2128 15.6934C10.1218 15.6557 10.039 15.6004 9.96938 15.5306L7.71938 13.2806C7.57865 13.1399 7.49959 12.949 7.49959 12.75C7.49959 12.551 7.57865 12.3601 7.71938 12.2194C7.86011 12.0786 8.05098 11.9996 8.25 11.9996C8.44903 11.9996 8.6399 12.0786 8.78063 12.2194L10.5 13.9397L15.2194 9.21937C15.2891 9.14969 15.3718 9.09442 15.4628 9.0567C15.5539 9.01899 15.6515 8.99958 15.75 8.99958C15.8486 8.99958 15.9461 9.01899 16.0372 9.0567C16.1282 9.09442 16.2109 9.14969 16.2806 9.21937C16.3503 9.28906 16.4056 9.37178 16.4433 9.46283C16.481 9.55387 16.5004 9.65145 16.5004 9.75C16.5004 9.84855 16.481 9.94613 16.4433 10.0372C16.4056 10.1282 16.3503 10.2109 16.2806 10.2806Z" fill="#24A865"></path> </svg> </li><li class=""> <span class="option-label">C</span> <span class="option-data">Transfer RNA (t-RN<br/>A)</span> </li><li class=""> <span class="option-label">D</span> <span class="option-data">Small nuclear RNA (sn-RN<br/>A)</span> </li> </ul>

correct_option:
<div class="correct-answer">
The correct answer is:
<span class="option-value">Ribosomal RNA (r-RN<br/>A)</span> </div>


title: which-type-of-secondary-cell-is-commonly-used-in-automobiles-and-inverters
slug: which-type-of-secondary-cell-is-commonly-used-in-automobiles-and-inverters-14534
tags: ['Chemistry', 'Electrochemistry', 'NEET']
source_db: MarksBatch2_P4.db
question:
<div class="question">Which type of secondary cell is commonly used in automobiles and inverters?</div>

options:
<ul class="options"> <li class=""> <span class="option-label">A</span> <span class="option-data">Nickel-cadmium cell</span> </li><li class="correct"> <span class="option-label">B</span> <span class="option-data">Lead storage battery</span> <svg fill="none" height="24" viewbox="0 0 24 24" width="24" xmlns="http://www.w3.org/2000/svg"> <path d="M12 2.25C10.0716 2.25 8.18657 2.82183 6.58319 3.89317C4.97982 4.96452 3.73013 6.48726 2.99218 8.26884C2.25422 10.0504 2.06114 12.0108 2.43735 13.9021C2.81355 15.7934 3.74215 17.5307 5.10571 18.8943C6.46928 20.2579 8.20656 21.1865 10.0979 21.5627C11.9892 21.9389 13.9496 21.7458 15.7312 21.0078C17.5127 20.2699 19.0355 19.0202 20.1068 17.4168C21.1782 15.8134 21.75 13.9284 21.75 12C21.7473 9.41498 20.7192 6.93661 18.8913 5.10872C17.0634 3.28084 14.585 2.25273 12 2.25ZM16.2806 10.2806L11.0306 15.5306C10.961 15.6004 10.8783 15.6557 10.7872 15.6934C10.6962 15.7312 10.5986 15.7506 10.5 15.7506C10.4014 15.7506 10.3038 15.7312 10.2128 15.6934C10.1218 15.6557 10.039 15.6004 9.96938 15.5306L7.71938 13.2806C7.57865 13.1399 7.49959 12.949 7.49959 12.75C7.49959 12.551 7.57865 12.3601 7.71938 12.2194C7.86011 12.0786 8.05098 11.9996 8.25 11.9996C8.44903 11.9996 8.6399 12.0786 8.78063 12.2194L10.5 13.9397L15.2194 9.21937C15.2891 9.14969 15.3718 9.09442 15.4628 9.0567C15.5539 9.01899 15.6515 8.99958 15.75 8.99958C15.8486 8.99958 15.9461 9.01899 16.0372 9.0567C16.1282 9.09442 16.2109 9.14969 16.2806 9.21937C16.3503 9.28906 16.4056 9.37178 16.4433 9.46283C16.481 9.55387 16.5004 9.65145 16.5004 9.75C16.5004 9.84855 16.481 9.94613 16.4433 10.0372C16.4056 10.1282 16.3503 10.2109 16.2806 10.2806Z" fill="#24A865"></path> </svg> </li><li class=""> <span class="option-label">C</span> <span class="option-data">Lithium-ion cell</span> </li><li class=""> <span class="option-label">D</span> <span class="option-data">Alkaline cell</span> </li> </ul>

correct_option:
<div class="correct-answer">
The correct answer is:
<span class="option-value">Lead storage battery</span> </div>

answer:
<div class="solution">The most important secondary cell commonly used in automobiles and inverters is the lead storage battery.</div>


title: which-type-of-wbcs-are-the-least-abundant-among-the-total-wbcs-in-the-human-body
slug: which-type-of-wbcs-are-the-least-abundant-among-the-total-wbcs-in-the-human-body-76235
tags: ['Biology', 'Body Fluids and Circulation', 'NEET']
source_db: MarksBatch2_P4.db
question:
<div class="question">Which type of WBCs are the least abundant among the total WBCs in the human body?</div>

options:
<ul class="options"> <li class=""> <span class="option-label">A</span> <span class="option-data">Neutrophils</span> </li><li class=""> <span class="option-label">B</span> <span class="option-data">Monocytes</span> </li><li class=""> <span class="option-label">C</span> <span class="option-data">Lymphocytes</span> </li><li class="correct"> <span class="option-label">D</span> <span class="option-data">Basophils</span> <svg fill="none" height="24" viewbox="0 0 24 24" width="24" xmlns="http://www.w3.org/2000/svg"> <path d="M12 2.25C10.0716 2.25 8.18657 2.82183 6.58319 3.89317C4.97982 4.96452 3.73013 6.48726 2.99218 8.26884C2.25422 10.0504 2.06114 12.0108 2.43735 13.9021C2.81355 15.7934 3.74215 17.5307 5.10571 18.8943C6.46928 20.2579 8.20656 21.1865 10.0979 21.5627C11.9892 21.9389 13.9496 21.7458 15.7312 21.0078C17.5127 20.2699 19.0355 19.0202 20.1068 17.4168C21.1782 15.8134 21.75 13.9284 21.75 12C21.7473 9.41498 20.7192 6.93661 18.8913 5.10872C17.0634 3.28084 14.585 2.25273 12 2.25ZM16.2806 10.2806L11.0306 15.5306C10.961 15.6004 10.8783 15.6557 10.7872 15.6934C10.6962 15.7312 10.5986 15.7506 10.5 15.7506C10.4014 15.7506 10.3038 15.7312 10.2128 15.6934C10.1218 15.6557 10.039 15.6004 9.96938 15.5306L7.71938 13.2806C7.57865 13.1399 7.49959 12.949 7.49959 12.75C7.49959 12.551 7.57865 12.3601 7.71938 12.2194C7.86011 12.0786 8.05098 11.9996 8.25 11.9996C8.44903 11.9996 8.6399 12.0786 8.78063 12.2194L10.5 13.9397L15.2194 9.21937C15.2891 9.14969 15.3718 9.09442 15.4628 9.0567C15.5539 9.01899 15.6515 8.99958 15.75 8.99958C15.8486 8.99958 15.9461 9.01899 16.0372 9.0567C16.1282 9.09442 16.2109 9.14969 16.2806 9.21937C16.3503 9.28906 16.4056 9.37178 16.4433 9.46283C16.481 9.55387 16.5004 9.65145 16.5004 9.75C16.5004 9.84855 16.481 9.94613 16.4433 10.0372C16.4056 10.1282 16.3503 10.2109 16.2806 10.2806Z" fill="#24A865"></path> </svg> </li> </ul>

correct_option:
<div class="correct-answer">
The correct answer is:
<span class="option-value">Basophils</span> </div>

answer:
<div class="solution">Basophils are the least abundant cells among all the types of WBCs, constituting only 0.5-1% of the total WBCs. They are involved in secreting histamine, serotonin, heparin, etc., and are involved in inflammatory reactions.</div>


title: which-type-of-wbcs-is-the-most-abundant-among-the-total-wbcs-in-the-body
slug: which-type-of-wbcs-is-the-most-abundant-among-the-total-wbcs-in-the-body-90433
tags: ['Biology', 'Body Fluids and Circulation', 'NEET']
answer: <div class="solution">Neutrophils are the most abundant cells (60-65%) of the total WBCs.</div>
source_db: MarksBatch2_P4.db
question:
<div class="question">Which type of WBCs is the most abundant among the total WBCs in the body?</div>

options:
<ul class="options"> <li class="correct"> <span class="option-label">A</span> <span class="option-data">Neutrophils</span> <svg fill="none" height="24" viewbox="0 0 24 24" width="24" xmlns="http://www.w3.org/2000/svg"> <path d="M12 2.25C10.0716 2.25 8.18657 2.82183 6.58319 3.89317C4.97982 4.96452 3.73013 6.48726 2.99218 8.26884C2.25422 10.0504 2.06114 12.0108 2.43735 13.9021C2.81355 15.7934 3.74215 17.5307 5.10571 18.8943C6.46928 20.2579 8.20656 21.1865 10.0979 21.5627C11.9892 21.9389 13.9496 21.7458 15.7312 21.0078C17.5127 20.2699 19.0355 19.0202 20.1068 17.4168C21.1782 15.8134 21.75 13.9284 21.75 12C21.7473 9.41498 20.7192 6.93661 18.8913 5.10872C17.0634 3.28084 14.585 2.25273 12 2.25ZM16.2806 10.2806L11.0306 15.5306C10.961 15.6004 10.8783 15.6557 10.7872 15.6934C10.6962 15.7312 10.5986 15.7506 10.5 15.7506C10.4014 15.7506 10.3038 15.7312 10.2128 15.6934C10.1218 15.6557 10.039 15.6004 9.96938 15.5306L7.71938 13.2806C7.57865 13.1399 7.49959 12.949 7.49959 12.75C7.49959 12.551 7.57865 12.3601 7.71938 12.2194C7.86011 12.0786 8.05098 11.9996 8.25 11.9996C8.44903 11.9996 8.6399 12.0786 8.78063 12.2194L10.5 13.9397L15.2194 9.21937C15.2891 9.14969 15.3718 9.09442 15.4628 9.0567C15.5539 9.01899 15.6515 8.99958 15.75 8.99958C15.8486 8.99958 15.9461 9.01899 16.0372 9.0567C16.1282 9.09442 16.2109 9.14969 16.2806 9.21937C16.3503 9.28906 16.4056 9.37178 16.4433 9.46283C16.481 9.55387 16.5004 9.65145 16.5004 9.75C16.5004 9.84855 16.481 9.94613 16.4433 10.0372C16.4056 10.1282 16.3503 10.2109 16.2806 10.2806Z" fill="#24A865"></path> </svg> </li><li class=""> <span class="option-label">B</span> <span class="option-data">Basophils</span> </li><li class=""> <span class="option-label">C</span> <span class="option-data">Eosinophils</span> </li><li class=""> <span class="option-label">D</span> <span class="option-data">Lymphocytes</span> </li> </ul>

correct_option:
<div class="correct-answer">
The correct answer is:
<span class="option-value">Neutrophils</span> </div>


title: which-vitamin-is-associated-with-the-maintenance-of-bone-density
slug: which-vitamin-is-associated-with-the-maintenance-of-bone-density-45484
question: <div class="question">Which vitamin is associated with the maintenance of bone density?</div>
tags: ['Biology', 'Digestion and Absorption', 'AIIMS', 'AIIMS 2019 (25 May)']
source_db: MarksBatch2_P4.db
options:
<ul class="options"> <li class=""> <span class="option-label">A</span> <span class="option-data">Vitamin C</span> </li><li class=""> <span class="option-label">B</span> <span class="option-data">Vitamin D</span> </li><li class=""> <span class="option-label">C</span> <span class="option-data">Vitamin $\mathrm{B}_{12}$</span> </li><li class="correct"> <span class="option-label">D</span> <span class="option-data">All of these</span> <svg fill="none" height="24" viewbox="0 0 24 24" width="24" xmlns="http://www.w3.org/2000/svg"> <path d="M12 2.25C10.0716 2.25 8.18657 2.82183 6.58319 3.89317C4.97982 4.96452 3.73013 6.48726 2.99218 8.26884C2.25422 10.0504 2.06114 12.0108 2.43735 13.9021C2.81355 15.7934 3.74215 17.5307 5.10571 18.8943C6.46928 20.2579 8.20656 21.1865 10.0979 21.5627C11.9892 21.9389 13.9496 21.7458 15.7312 21.0078C17.5127 20.2699 19.0355 19.0202 20.1068 17.4168C21.1782 15.8134 21.75 13.9284 21.75 12C21.7473 9.41498 20.7192 6.93661 18.8913 5.10872C17.0634 3.28084 14.585 2.25273 12 2.25ZM16.2806 10.2806L11.0306 15.5306C10.961 15.6004 10.8783 15.6557 10.7872 15.6934C10.6962 15.7312 10.5986 15.7506 10.5 15.7506C10.4014 15.7506 10.3038 15.7312 10.2128 15.6934C10.1218 15.6557 10.039 15.6004 9.96938 15.5306L7.71938 13.2806C7.57865 13.1399 7.49959 12.949 7.49959 12.75C7.49959 12.551 7.57865 12.3601 7.71938 12.2194C7.86011 12.0786 8.05098 11.9996 8.25 11.9996C8.44903 11.9996 8.6399 12.0786 8.78063 12.2194L10.5 13.9397L15.2194 9.21937C15.2891 9.14969 15.3718 9.09442 15.4628 9.0567C15.5539 9.01899 15.6515 8.99958 15.75 8.99958C15.8486 8.99958 15.9461 9.01899 16.0372 9.0567C16.1282 9.09442 16.2109 9.14969 16.2806 9.21937C16.3503 9.28906 16.4056 9.37178 16.4433 9.46283C16.481 9.55387 16.5004 9.65145 16.5004 9.75C16.5004 9.84855 16.481 9.94613 16.4433 10.0372C16.4056 10.1282 16.3503 10.2109 16.2806 10.2806Z" fill="#24A865"></path> </svg> </li> </ul>

answer:
<div class="solution">Bone density is the amount of bone mineral present in bone tissue. The higher the bone mineral content, the denser the bones are. Several vitamins are important to bone health. Vitamin $\mathrm{B}_{12}$ has an effect on bone building cells. The low levels of $\mathrm{B}_{12}$ result in the higher risk of osteoporosis in both men and women and thus results in lower bone density. Vitamin $\mathrm{C}$ is essential for the formation of collagen, the foundation that bone mineralization is built on. Increased levels of vitamin $\mathrm{C}$ results in greater bone density. Vitamin D is most essential for greater bone density. It helps the body to absorb calcium.</div>


title: while-recording-ecg-the-electrical-lead-is-not-attached-to-the
slug: while-recording-ecg-the-electrical-lead-is-not-attached-to-the-33104
question: <div class="question">While recording ECG, the electrical lead is not attached to the</div>
tags: ['Biology', 'Body Fluids and Circulation', 'NEET']
source_db: MarksBatch2_P4.db
options:
<ul class="options"> <li class=""> <span class="option-label">A</span> <span class="option-data">right wrist</span> </li><li class=""> <span class="option-label">B</span> <span class="option-data">left wrist</span> </li><li class="correct"> <span class="option-label">C</span> <span class="option-data">right ankle</span> <svg fill="none" height="24" viewbox="0 0 24 24" width="24" xmlns="http://www.w3.org/2000/svg"> <path d="M12 2.25C10.0716 2.25 8.18657 2.82183 6.58319 3.89317C4.97982 4.96452 3.73013 6.48726 2.99218 8.26884C2.25422 10.0504 2.06114 12.0108 2.43735 13.9021C2.81355 15.7934 3.74215 17.5307 5.10571 18.8943C6.46928 20.2579 8.20656 21.1865 10.0979 21.5627C11.9892 21.9389 13.9496 21.7458 15.7312 21.0078C17.5127 20.2699 19.0355 19.0202 20.1068 17.4168C21.1782 15.8134 21.75 13.9284 21.75 12C21.7473 9.41498 20.7192 6.93661 18.8913 5.10872C17.0634 3.28084 14.585 2.25273 12 2.25ZM16.2806 10.2806L11.0306 15.5306C10.961 15.6004 10.8783 15.6557 10.7872 15.6934C10.6962 15.7312 10.5986 15.7506 10.5 15.7506C10.4014 15.7506 10.3038 15.7312 10.2128 15.6934C10.1218 15.6557 10.039 15.6004 9.96938 15.5306L7.71938 13.2806C7.57865 13.1399 7.49959 12.949 7.49959 12.75C7.49959 12.551 7.57865 12.3601 7.71938 12.2194C7.86011 12.0786 8.05098 11.9996 8.25 11.9996C8.44903 11.9996 8.6399 12.0786 8.78063 12.2194L10.5 13.9397L15.2194 9.21937C15.2891 9.14969 15.3718 9.09442 15.4628 9.0567C15.5539 9.01899 15.6515 8.99958 15.75 8.99958C15.8486 8.99958 15.9461 9.01899 16.0372 9.0567C16.1282 9.09442 16.2109 9.14969 16.2806 9.21937C16.3503 9.28906 16.4056 9.37178 16.4433 9.46283C16.481 9.55387 16.5004 9.65145 16.5004 9.75C16.5004 9.84855 16.481 9.94613 16.4433 10.0372C16.4056 10.1282 16.3503 10.2109 16.2806 10.2806Z" fill="#24A865"></path> </svg> </li><li class=""> <span class="option-label">D</span> <span class="option-data">left ankle</span> </li> </ul>

correct_option:
<div class="correct-answer">
The correct answer is:
<span class="option-value">right ankle</span> </div>

answer:
<div class="solution">ECG is Electrocardiogram that is a graph that represents the heart activity. This is recorded by a machine known as Electrocardiograph. This is recorded using six chest leads and three limb leads. This graph shows many peaks which are designated by alphabets P to T. The three limb leads are Left wrist, Right wrist and Left ankle. This is the standard placement of leads. Right ankle is grounded as it acts to remove extra currents and is not a part of ECG readings. The three leads form the Eithoven triangle (imaginary triangle).</div>


title: who-developed-the-fundamental-equation-of-quantum-mechanics-based-on-wave-motion
slug: who-developed-the-fundamental-equation-of-quantum-mechanics-based-on-wave-motion-36532
tags: ['Chemistry', 'Structure of Atom', 'NEET']
source_db: MarksBatch2_P4.db
question:
<div class="question">Who developed the fundamental equation of quantum mechanics based on wave motion?</div>

options:
<ul class="options"> <li class=""> <span class="option-label">A</span> <span class="option-data">Werner Heisenberg</span> </li><li class="correct"> <span class="option-label">B</span> <span class="option-data">Erwin SchrÃ¶dinger</span> <svg fill="none" height="24" viewbox="0 0 24 24" width="24" xmlns="http://www.w3.org/2000/svg"> <path d="M12 2.25C10.0716 2.25 8.18657 2.82183 6.58319 3.89317C4.97982 4.96452 3.73013 6.48726 2.99218 8.26884C2.25422 10.0504 2.06114 12.0108 2.43735 13.9021C2.81355 15.7934 3.74215 17.5307 5.10571 18.8943C6.46928 20.2579 8.20656 21.1865 10.0979 21.5627C11.9892 21.9389 13.9496 21.7458 15.7312 21.0078C17.5127 20.2699 19.0355 19.0202 20.1068 17.4168C21.1782 15.8134 21.75 13.9284 21.75 12C21.7473 9.41498 20.7192 6.93661 18.8913 5.10872C17.0634 3.28084 14.585 2.25273 12 2.25ZM16.2806 10.2806L11.0306 15.5306C10.961 15.6004 10.8783 15.6557 10.7872 15.6934C10.6962 15.7312 10.5986 15.7506 10.5 15.7506C10.4014 15.7506 10.3038 15.7312 10.2128 15.6934C10.1218 15.6557 10.039 15.6004 9.96938 15.5306L7.71938 13.2806C7.57865 13.1399 7.49959 12.949 7.49959 12.75C7.49959 12.551 7.57865 12.3601 7.71938 12.2194C7.86011 12.0786 8.05098 11.9996 8.25 11.9996C8.44903 11.9996 8.6399 12.0786 8.78063 12.2194L10.5 13.9397L15.2194 9.21937C15.2891 9.14969 15.3718 9.09442 15.4628 9.0567C15.5539 9.01899 15.6515 8.99958 15.75 8.99958C15.8486 8.99958 15.9461 9.01899 16.0372 9.0567C16.1282 9.09442 16.2109 9.14969 16.2806 9.21937C16.3503 9.28906 16.4056 9.37178 16.4433 9.46283C16.481 9.55387 16.5004 9.65145 16.5004 9.75C16.5004 9.84855 16.481 9.94613 16.4433 10.0372C16.4056 10.1282 16.3503 10.2109 16.2806 10.2806Z" fill="#24A865"></path> </svg> </li><li class=""> <span class="option-label">C</span> <span class="option-data">Louis de Broglie</span> </li><li class=""> <span class="option-label">D</span> <span class="option-data">Max Planck</span> </li> </ul>

correct_option:
<div class="correct-answer">
The correct answer is:
<span class="option-value">Erwin SchrÃ¶dinger</span> </div>

answer:
<div class="solution">The fundamental equation of quantum mechanics based on wave motion was developed by Erwin SchrÃ¶dinger.</div>


tags: ['Biology', 'Principles of Inheritance and Variation', 'NEET']
source_db: MarksBatch2_P4.db
title:
who-observed-that-the-behaviour-of-chromosomes-at-meiosis-can-serve-as-the-cellular-basis-of-both-segregation-and-independent-assortment

slug:
who-observed-that-the-behaviour-of-chromosomes-at-meiosis-can-serve-as-the-cellular-basis-of-both-segregation-and-independent-assortment-22810

question:
<div class="question">Who observed that the behaviour of chromosomes at meiosis can serve as the cellular basis of both segregation and independent assortment?</div>

options:
<ul class="options"> <li class="correct"> <span class="option-label">A</span> <span class="option-data">Sutton and Boveri</span> <svg fill="none" height="24" viewbox="0 0 24 24" width="24" xmlns="http://www.w3.org/2000/svg"> <path d="M12 2.25C10.0716 2.25 8.18657 2.82183 6.58319 3.89317C4.97982 4.96452 3.73013 6.48726 2.99218 8.26884C2.25422 10.0504 2.06114 12.0108 2.43735 13.9021C2.81355 15.7934 3.74215 17.5307 5.10571 18.8943C6.46928 20.2579 8.20656 21.1865 10.0979 21.5627C11.9892 21.9389 13.9496 21.7458 15.7312 21.0078C17.5127 20.2699 19.0355 19.0202 20.1068 17.4168C21.1782 15.8134 21.75 13.9284 21.75 12C21.7473 9.41498 20.7192 6.93661 18.8913 5.10872C17.0634 3.28084 14.585 2.25273 12 2.25ZM16.2806 10.2806L11.0306 15.5306C10.961 15.6004 10.8783 15.6557 10.7872 15.6934C10.6962 15.7312 10.5986 15.7506 10.5 15.7506C10.4014 15.7506 10.3038 15.7312 10.2128 15.6934C10.1218 15.6557 10.039 15.6004 9.96938 15.5306L7.71938 13.2806C7.57865 13.1399 7.49959 12.949 7.49959 12.75C7.49959 12.551 7.57865 12.3601 7.71938 12.2194C7.86011 12.0786 8.05098 11.9996 8.25 11.9996C8.44903 11.9996 8.6399 12.0786 8.78063 12.2194L10.5 13.9397L15.2194 9.21937C15.2891 9.14969 15.3718 9.09442 15.4628 9.0567C15.5539 9.01899 15.6515 8.99958 15.75 8.99958C15.8486 8.99958 15.9461 9.01899 16.0372 9.0567C16.1282 9.09442 16.2109 9.14969 16.2806 9.21937C16.3503 9.28906 16.4056 9.37178 16.4433 9.46283C16.481 9.55387 16.5004 9.65145 16.5004 9.75C16.5004 9.84855 16.481 9.94613 16.4433 10.0372C16.4056 10.1282 16.3503 10.2109 16.2806 10.2806Z" fill="#24A865"></path> </svg> </li><li class=""> <span class="option-label">B</span> <span class="option-data">Bateson and Boveri</span> </li><li class=""> <span class="option-label">C</span> <span class="option-data">Sutton and Florey</span> </li><li class=""> <span class="option-label">D</span> <span class="option-data">Boveri and Morgan</span> </li> </ul>

correct_option:
<div class="correct-answer">
The correct answer is:
<span class="option-value">Sutton and Boveri</span> </div>

answer:
<div class="solution">The BoveriâSutton chromosomal theory of inheritance is a fundamental unifying theory of genetics. It identifies chromosomes as the carriers of genetic material. It correctly explains the mechanism underlying the laws of Mendelian inheritance by identifying chromosomes with the paired factors (particles) required by Mendel's laws. It also states that chromosomes are linear structures with genes located at specific sites called loci along with them.<br/><br/>The theory states that chromosomes, which are seen in all dividing cells and pass from one generation to the next, are the basis for all genetic inheritance.<br/><br/>Sutton and Boveri observed that the behaviour of chromosomes at meiosis can serve as the cellular basis of both segregation and independent assortment.</div>


title: why-are-alloys-used-for-making-standard-resistance-coils-1
slug: why-are-alloys-used-for-making-standard-resistance-coils-1-45952
question: <div class="question">Why are alloys used for making standard resistance coils?</div>
tags: ['Chemistry', 'Current Electricity', 'NEET']
source_db: MarksBatch2_P4.db
options:
<ul class="options"> <li class=""> <span class="option-label">A</span> <span class="option-data">Because they are easy to manipulate and mold into desired shapes.</span> </li><li class=""> <span class="option-label">B</span> <span class="option-data">Due to their high cost-effectiveness and widespread availability.</span> </li><li class="correct"> <span class="option-label">C</span> <span class="option-data">Alloys have a low temperature co-efficient of resistance and high resistivity.</span> <svg fill="none" height="24" viewbox="0 0 24 24" width="24" xmlns="http://www.w3.org/2000/svg"> <path d="M12 2.25C10.0716 2.25 8.18657 2.82183 6.58319 3.89317C4.97982 4.96452 3.73013 6.48726 2.99218 8.26884C2.25422 10.0504 2.06114 12.0108 2.43735 13.9021C2.81355 15.7934 3.74215 17.5307 5.10571 18.8943C6.46928 20.2579 8.20656 21.1865 10.0979 21.5627C11.9892 21.9389 13.9496 21.7458 15.7312 21.0078C17.5127 20.2699 19.0355 19.0202 20.1068 17.4168C21.1782 15.8134 21.75 13.9284 21.75 12C21.7473 9.41498 20.7192 6.93661 18.8913 5.10872C17.0634 3.28084 14.585 2.25273 12 2.25ZM16.2806 10.2806L11.0306 15.5306C10.961 15.6004 10.8783 15.6557 10.7872 15.6934C10.6962 15.7312 10.5986 15.7506 10.5 15.7506C10.4014 15.7506 10.3038 15.7312 10.2128 15.6934C10.1218 15.6557 10.039 15.6004 9.96938 15.5306L7.71938 13.2806C7.57865 13.1399 7.49959 12.949 7.49959 12.75C7.49959 12.551 7.57865 12.3601 7.71938 12.2194C7.86011 12.0786 8.05098 11.9996 8.25 11.9996C8.44903 11.9996 8.6399 12.0786 8.78063 12.2194L10.5 13.9397L15.2194 9.21937C15.2891 9.14969 15.3718 9.09442 15.4628 9.0567C15.5539 9.01899 15.6515 8.99958 15.75 8.99958C15.8486 8.99958 15.9461 9.01899 16.0372 9.0567C16.1282 9.09442 16.2109 9.14969 16.2806 9.21937C16.3503 9.28906 16.4056 9.37178 16.4433 9.46283C16.481 9.55387 16.5004 9.65145 16.5004 9.75C16.5004 9.84855 16.481 9.94613 16.4433 10.0372C16.4056 10.1282 16.3503 10.2109 16.2806 10.2806Z" fill="#24A865"></path> </svg> </li><li class=""> <span class="option-label">D</span> <span class="option-data">Alloys provide better conductivity and are resistant to corrosion.</span> </li> </ul>

correct_option:
<div class="correct-answer">
The correct answer is:
<span class="option-value">Alloys have a low temperature co-efficient of resistance and high resistivity.</span> </div>

answer:
<div class="solution">Correct Option is : (C)<br/>Alloys have a low temperature co-efficient of resistance and high resistivity.</div>


title: why-are-alloys-used-for-making-standard-resistance-coils
slug: why-are-alloys-used-for-making-standard-resistance-coils-31029
question: <div class="question">Why are alloys used for making standard resistance coils?</div>
tags: ['Physics', 'Current Electricity']
options: None
correct_option: None
source_db: MarksBatch2_P4.db
answer:
<div class="solution">Alloy has less value of temperature coefficient of resistance with less temperature sensitivity.<br/>So, the resistance of the wire almost constant even in small temperature change. The alloys also has high resistivity $\left(\mathrm{R}=\rho \frac{l}{\mathrm{~A}}\right)$.<br/>Hence high resistance, because for given length and crosssection area of conductor ( $l$ and A are constant). Due to this reason alloys are used to make standard resistance coils.</div>


title: why-are-lithium-salts-often-found-in-hydrated-forms-such-as-licl-2h2o
slug: why-are-lithium-salts-often-found-in-hydrated-forms-such-as-licl-2h2o-31926
tags: ['Chemistry', 's Block Elements', 'NEET']
source_db: MarksBatch2_P4.db
question:
<div class="question">Why are lithium salts often found in hydrated forms, such as LiClÂ· 2H2O?</div>

options:
<ul class="options"> <li class=""> <span class="option-label">A</span> <span class="option-data">Lithium has a high melting point.</span> </li><li class="correct"> <span class="option-label">B</span> <span class="option-data">Lithium has a strong tendency to form hydrates.</span> <svg fill="none" height="24" viewbox="0 0 24 24" width="24" xmlns="http://www.w3.org/2000/svg"> <path d="M12 2.25C10.0716 2.25 8.18657 2.82183 6.58319 3.89317C4.97982 4.96452 3.73013 6.48726 2.99218 8.26884C2.25422 10.0504 2.06114 12.0108 2.43735 13.9021C2.81355 15.7934 3.74215 17.5307 5.10571 18.8943C6.46928 20.2579 8.20656 21.1865 10.0979 21.5627C11.9892 21.9389 13.9496 21.7458 15.7312 21.0078C17.5127 20.2699 19.0355 19.0202 20.1068 17.4168C21.1782 15.8134 21.75 13.9284 21.75 12C21.7473 9.41498 20.7192 6.93661 18.8913 5.10872C17.0634 3.28084 14.585 2.25273 12 2.25ZM16.2806 10.2806L11.0306 15.5306C10.961 15.6004 10.8783 15.6557 10.7872 15.6934C10.6962 15.7312 10.5986 15.7506 10.5 15.7506C10.4014 15.7506 10.3038 15.7312 10.2128 15.6934C10.1218 15.6557 10.039 15.6004 9.96938 15.5306L7.71938 13.2806C7.57865 13.1399 7.49959 12.949 7.49959 12.75C7.49959 12.551 7.57865 12.3601 7.71938 12.2194C7.86011 12.0786 8.05098 11.9996 8.25 11.9996C8.44903 11.9996 8.6399 12.0786 8.78063 12.2194L10.5 13.9397L15.2194 9.21937C15.2891 9.14969 15.3718 9.09442 15.4628 9.0567C15.5539 9.01899 15.6515 8.99958 15.75 8.99958C15.8486 8.99958 15.9461 9.01899 16.0372 9.0567C16.1282 9.09442 16.2109 9.14969 16.2806 9.21937C16.3503 9.28906 16.4056 9.37178 16.4433 9.46283C16.481 9.55387 16.5004 9.65145 16.5004 9.75C16.5004 9.84855 16.481 9.94613 16.4433 10.0372C16.4056 10.1282 16.3503 10.2109 16.2806 10.2806Z" fill="#24A865"></path> </svg> </li><li class=""> <span class="option-label">C</span> <span class="option-data">Lithium is highly soluble in water.</span> </li><li class=""> <span class="option-label">D</span> <span class="option-data">Lithium is found in abundance in nature.</span> </li> </ul>

correct_option:
<div class="correct-answer">
The correct answer is:
<span class="option-value">Lithium has a strong tendency to form hydrates.</span> </div>

answer:
<div class="solution">Lithium ions (Li+) have a strong affinity for water molecules and readily form hydrates when in contact with water. This is why lithium salts are often found in hydrated forms, such as LiClÂ· 2H2O.</div>


title: why-are-naturally-occurring-amino-acids-referred-to-as-amino-acids
slug: why-are-naturally-occurring-amino-acids-referred-to-as-amino-acids-60900
tags: ['Chemistry', 'Biomolecules', 'NEET']
answer: <div class="solution">The term "Î±-amino acids" is used because they have an Î±-carbon atom.</div>
source_db: MarksBatch2_P4.db
question:
<div class="question">Why are naturally occurring amino acids referred to as "Î±-amino acids"?</div>

options:
<ul class="options"> <li class="correct"> <span class="option-label">A</span> <span class="option-data">Because they have an Î±-carbon atom</span> <svg fill="none" height="24" viewbox="0 0 24 24" width="24" xmlns="http://www.w3.org/2000/svg"> <path d="M12 2.25C10.0716 2.25 8.18657 2.82183 6.58319 3.89317C4.97982 4.96452 3.73013 6.48726 2.99218 8.26884C2.25422 10.0504 2.06114 12.0108 2.43735 13.9021C2.81355 15.7934 3.74215 17.5307 5.10571 18.8943C6.46928 20.2579 8.20656 21.1865 10.0979 21.5627C11.9892 21.9389 13.9496 21.7458 15.7312 21.0078C17.5127 20.2699 19.0355 19.0202 20.1068 17.4168C21.1782 15.8134 21.75 13.9284 21.75 12C21.7473 9.41498 20.7192 6.93661 18.8913 5.10872C17.0634 3.28084 14.585 2.25273 12 2.25ZM16.2806 10.2806L11.0306 15.5306C10.961 15.6004 10.8783 15.6557 10.7872 15.6934C10.6962 15.7312 10.5986 15.7506 10.5 15.7506C10.4014 15.7506 10.3038 15.7312 10.2128 15.6934C10.1218 15.6557 10.039 15.6004 9.96938 15.5306L7.71938 13.2806C7.57865 13.1399 7.49959 12.949 7.49959 12.75C7.49959 12.551 7.57865 12.3601 7.71938 12.2194C7.86011 12.0786 8.05098 11.9996 8.25 11.9996C8.44903 11.9996 8.6399 12.0786 8.78063 12.2194L10.5 13.9397L15.2194 9.21937C15.2891 9.14969 15.3718 9.09442 15.4628 9.0567C15.5539 9.01899 15.6515 8.99958 15.75 8.99958C15.8486 8.99958 15.9461 9.01899 16.0372 9.0567C16.1282 9.09442 16.2109 9.14969 16.2806 9.21937C16.3503 9.28906 16.4056 9.37178 16.4433 9.46283C16.481 9.55387 16.5004 9.65145 16.5004 9.75C16.5004 9.84855 16.481 9.94613 16.4433 10.0372C16.4056 10.1282 16.3503 10.2109 16.2806 10.2806Z" fill="#24A865"></path> </svg> </li><li class=""> <span class="option-label">B</span> <span class="option-data">Because they have an Î±-helix structure</span> </li><li class=""> <span class="option-label">C</span> <span class="option-data">Because they have an Î±-tertiary structure</span> </li><li class=""> <span class="option-label">D</span> <span class="option-data">Because they have an Î±-secondary structure</span> </li> </ul>

correct_option:
<div class="correct-answer">
The correct answer is:
<span class="option-value">Because they have an Î±-carbon atom</span> </div>


title: why-are-vascular-bundles-closed-in-monocots
slug: why-are-vascular-bundles-closed-in-monocots-60529
question: <div class="question">Why are vascular bundles closed in monocots?</div>
tags: ['Biology', 'Anatomy of Flowering Plants', 'AIIMS', 'AIIMS 2010']
source_db: MarksBatch2_P4.db
options:
<ul class="options"> <li class=""> <span class="option-label">A</span> <span class="option-data">Xylem and phloem are present.</span> </li><li class=""> <span class="option-label">B</span> <span class="option-data">Xylem and phloem occur in separate bundles.</span> </li><li class=""> <span class="option-label">C</span> <span class="option-data">Vascular cambium is present between xylem and phloem.</span> </li><li class="correct"> <span class="option-label">D</span> <span class="option-data">Vascular cambium is not present.</span> <svg fill="none" height="24" viewbox="0 0 24 24" width="24" xmlns="http://www.w3.org/2000/svg"> <path d="M12 2.25C10.0716 2.25 8.18657 2.82183 6.58319 3.89317C4.97982 4.96452 3.73013 6.48726 2.99218 8.26884C2.25422 10.0504 2.06114 12.0108 2.43735 13.9021C2.81355 15.7934 3.74215 17.5307 5.10571 18.8943C6.46928 20.2579 8.20656 21.1865 10.0979 21.5627C11.9892 21.9389 13.9496 21.7458 15.7312 21.0078C17.5127 20.2699 19.0355 19.0202 20.1068 17.4168C21.1782 15.8134 21.75 13.9284 21.75 12C21.7473 9.41498 20.7192 6.93661 18.8913 5.10872C17.0634 3.28084 14.585 2.25273 12 2.25ZM16.2806 10.2806L11.0306 15.5306C10.961 15.6004 10.8783 15.6557 10.7872 15.6934C10.6962 15.7312 10.5986 15.7506 10.5 15.7506C10.4014 15.7506 10.3038 15.7312 10.2128 15.6934C10.1218 15.6557 10.039 15.6004 9.96938 15.5306L7.71938 13.2806C7.57865 13.1399 7.49959 12.949 7.49959 12.75C7.49959 12.551 7.57865 12.3601 7.71938 12.2194C7.86011 12.0786 8.05098 11.9996 8.25 11.9996C8.44903 11.9996 8.6399 12.0786 8.78063 12.2194L10.5 13.9397L15.2194 9.21937C15.2891 9.14969 15.3718 9.09442 15.4628 9.0567C15.5539 9.01899 15.6515 8.99958 15.75 8.99958C15.8486 8.99958 15.9461 9.01899 16.0372 9.0567C16.1282 9.09442 16.2109 9.14969 16.2806 9.21937C16.3503 9.28906 16.4056 9.37178 16.4433 9.46283C16.481 9.55387 16.5004 9.65145 16.5004 9.75C16.5004 9.84855 16.481 9.94613 16.4433 10.0372C16.4056 10.1282 16.3503 10.2109 16.2806 10.2806Z" fill="#24A865"></path> </svg> </li> </ul>

correct_option:
<div class="correct-answer">
The correct answer is:
<span class="option-value">Vascular cambium is not present.</span> </div>

answer:
<div class="solution">The vascular system consists of complex tissues, the phloem and the xylem. The xylem and phloem together constitute vascular bundles. In dicotyledonous stems, cambium is present between phloem and xylem. Such vascular bundles because of the presence of cambium possess the ability to form secondary xylem and phloem tissues, and hence are called open vascular bundles. In the monocotyledons, the vascular bundles have no cambium present in them. Hence, since they do not form secondary tissues so they are referred to as closed.</div>


title: why-are-vascular-bundles-in-dicotyledonous-stems-referred-to-as-open
slug: why-are-vascular-bundles-in-dicotyledonous-stems-referred-to-as-open-10282
question: <div class="question">Why are vascular bundles in dicotyledonous stems referred to as open?</div>
tags: ['Biology', 'Anatomy of Flowering Plants', 'NEET']
source_db: MarksBatch2_P4.db
options:
<ul class="options"> <li class="correct"> <span class="option-label">A</span> <span class="option-data">Because they possess the ability to form secondary xylem and phloem tissues</span> <svg fill="none" height="24" viewbox="0 0 24 24" width="24" xmlns="http://www.w3.org/2000/svg"> <path d="M12 2.25C10.0716 2.25 8.18657 2.82183 6.58319 3.89317C4.97982 4.96452 3.73013 6.48726 2.99218 8.26884C2.25422 10.0504 2.06114 12.0108 2.43735 13.9021C2.81355 15.7934 3.74215 17.5307 5.10571 18.8943C6.46928 20.2579 8.20656 21.1865 10.0979 21.5627C11.9892 21.9389 13.9496 21.7458 15.7312 21.0078C17.5127 20.2699 19.0355 19.0202 20.1068 17.4168C21.1782 15.8134 21.75 13.9284 21.75 12C21.7473 9.41498 20.7192 6.93661 18.8913 5.10872C17.0634 3.28084 14.585 2.25273 12 2.25ZM16.2806 10.2806L11.0306 15.5306C10.961 15.6004 10.8783 15.6557 10.7872 15.6934C10.6962 15.7312 10.5986 15.7506 10.5 15.7506C10.4014 15.7506 10.3038 15.7312 10.2128 15.6934C10.1218 15.6557 10.039 15.6004 9.96938 15.5306L7.71938 13.2806C7.57865 13.1399 7.49959 12.949 7.49959 12.75C7.49959 12.551 7.57865 12.3601 7.71938 12.2194C7.86011 12.0786 8.05098 11.9996 8.25 11.9996C8.44903 11.9996 8.6399 12.0786 8.78063 12.2194L10.5 13.9397L15.2194 9.21937C15.2891 9.14969 15.3718 9.09442 15.4628 9.0567C15.5539 9.01899 15.6515 8.99958 15.75 8.99958C15.8486 8.99958 15.9461 9.01899 16.0372 9.0567C16.1282 9.09442 16.2109 9.14969 16.2806 9.21937C16.3503 9.28906 16.4056 9.37178 16.4433 9.46283C16.481 9.55387 16.5004 9.65145 16.5004 9.75C16.5004 9.84855 16.481 9.94613 16.4433 10.0372C16.4056 10.1282 16.3503 10.2109 16.2806 10.2806Z" fill="#24A865"></path> </svg> </li><li class=""> <span class="option-label">B</span> <span class="option-data">Because they have no cambium present in them</span> </li><li class=""> <span class="option-label">C</span> <span class="option-data">Because they are jointly situated along the same radius of vascular bundles</span> </li><li class=""> <span class="option-label">D</span> <span class="option-data">Because they are arranged in an alternate manner along the different radii</span> </li> </ul>

correct_option:
<div class="correct-answer">
The correct answer is:
<span class="option-value">Because they possess the ability to form secondary xylem and phloem tissues</span> </div>

answer:
<div class="solution">In dicotyledonous stems, cambium is present between phloem and xylem, and hence such vascular bundles possess the ability to form secondary xylem and phloem tissues, and are referred to as open.</div>


title: why-are-vitamins-considered-essential-food-factors-for-humans
slug: why-are-vitamins-considered-essential-food-factors-for-humans-37550
question: <div class="question">Why are vitamins considered essential food factors for humans?</div>
tags: ['Chemistry', 'Biomolecules', 'NEET']
source_db: MarksBatch2_P4.db
options:
<ul class="options"> <li class=""> <span class="option-label">A</span> <span class="option-data">They provide energy.</span> </li><li class=""> <span class="option-label">B</span> <span class="option-data">They are synthesized by the human body.</span> </li><li class=""> <span class="option-label">C</span> <span class="option-data">They are abundant in animal-based foods.</span> </li><li class="correct"> <span class="option-label">D</span> <span class="option-data">Humans cannot synthesize most vitamins and must obtain them from their diet.</span> <svg fill="none" height="24" viewbox="0 0 24 24" width="24" xmlns="http://www.w3.org/2000/svg"> <path d="M12 2.25C10.0716 2.25 8.18657 2.82183 6.58319 3.89317C4.97982 4.96452 3.73013 6.48726 2.99218 8.26884C2.25422 10.0504 2.06114 12.0108 2.43735 13.9021C2.81355 15.7934 3.74215 17.5307 5.10571 18.8943C6.46928 20.2579 8.20656 21.1865 10.0979 21.5627C11.9892 21.9389 13.9496 21.7458 15.7312 21.0078C17.5127 20.2699 19.0355 19.0202 20.1068 17.4168C21.1782 15.8134 21.75 13.9284 21.75 12C21.7473 9.41498 20.7192 6.93661 18.8913 5.10872C17.0634 3.28084 14.585 2.25273 12 2.25ZM16.2806 10.2806L11.0306 15.5306C10.961 15.6004 10.8783 15.6557 10.7872 15.6934C10.6962 15.7312 10.5986 15.7506 10.5 15.7506C10.4014 15.7506 10.3038 15.7312 10.2128 15.6934C10.1218 15.6557 10.039 15.6004 9.96938 15.5306L7.71938 13.2806C7.57865 13.1399 7.49959 12.949 7.49959 12.75C7.49959 12.551 7.57865 12.3601 7.71938 12.2194C7.86011 12.0786 8.05098 11.9996 8.25 11.9996C8.44903 11.9996 8.6399 12.0786 8.78063 12.2194L10.5 13.9397L15.2194 9.21937C15.2891 9.14969 15.3718 9.09442 15.4628 9.0567C15.5539 9.01899 15.6515 8.99958 15.75 8.99958C15.8486 8.99958 15.9461 9.01899 16.0372 9.0567C16.1282 9.09442 16.2109 9.14969 16.2806 9.21937C16.3503 9.28906 16.4056 9.37178 16.4433 9.46283C16.481 9.55387 16.5004 9.65145 16.5004 9.75C16.5004 9.84855 16.481 9.94613 16.4433 10.0372C16.4056 10.1282 16.3503 10.2109 16.2806 10.2806Z" fill="#24A865"></path> </svg> </li> </ul>

correct_option:
<div class="correct-answer">
The correct answer is:
<span class="option-value">Humans cannot synthesize most vitamins and must obtain them from their diet.</span> </div>

answer:
<div class="solution">Vitamins are considered essential because most of them cannot be synthesized by the human body and must be obtained from the diet.</div>


title: why-do-primary-amines-undergo-the-carbylamine-reaction-while-secondary-and-tertiary-amines-do-not
tags: ['Chemistry', 'Amines', 'NEET']
source_db: MarksBatch2_P4.db
slug:
why-do-primary-amines-undergo-the-carbylamine-reaction-while-secondary-and-tertiary-amines-do-not-64377

question:
<div class="question">Why do primary amines undergo the carbylamine reaction, while secondary and tertiary amines do not?</div>

options:
<ul class="options"> <li class=""> <span class="option-label">A</span> <span class="option-data">Primary amines have more hydrogen atoms.</span> </li><li class=""> <span class="option-label">B</span> <span class="option-data">Secondary and tertiary amines are less reactive.</span> </li><li class="correct"> <span class="option-label">C</span> <span class="option-data">Primary amines have an available lone pair of electrons.</span> <svg fill="none" height="24" viewbox="0 0 24 24" width="24" xmlns="http://www.w3.org/2000/svg"> <path d="M12 2.25C10.0716 2.25 8.18657 2.82183 6.58319 3.89317C4.97982 4.96452 3.73013 6.48726 2.99218 8.26884C2.25422 10.0504 2.06114 12.0108 2.43735 13.9021C2.81355 15.7934 3.74215 17.5307 5.10571 18.8943C6.46928 20.2579 8.20656 21.1865 10.0979 21.5627C11.9892 21.9389 13.9496 21.7458 15.7312 21.0078C17.5127 20.2699 19.0355 19.0202 20.1068 17.4168C21.1782 15.8134 21.75 13.9284 21.75 12C21.7473 9.41498 20.7192 6.93661 18.8913 5.10872C17.0634 3.28084 14.585 2.25273 12 2.25ZM16.2806 10.2806L11.0306 15.5306C10.961 15.6004 10.8783 15.6557 10.7872 15.6934C10.6962 15.7312 10.5986 15.7506 10.5 15.7506C10.4014 15.7506 10.3038 15.7312 10.2128 15.6934C10.1218 15.6557 10.039 15.6004 9.96938 15.5306L7.71938 13.2806C7.57865 13.1399 7.49959 12.949 7.49959 12.75C7.49959 12.551 7.57865 12.3601 7.71938 12.2194C7.86011 12.0786 8.05098 11.9996 8.25 11.9996C8.44903 11.9996 8.6399 12.0786 8.78063 12.2194L10.5 13.9397L15.2194 9.21937C15.2891 9.14969 15.3718 9.09442 15.4628 9.0567C15.5539 9.01899 15.6515 8.99958 15.75 8.99958C15.8486 8.99958 15.9461 9.01899 16.0372 9.0567C16.1282 9.09442 16.2109 9.14969 16.2806 9.21937C16.3503 9.28906 16.4056 9.37178 16.4433 9.46283C16.481 9.55387 16.5004 9.65145 16.5004 9.75C16.5004 9.84855 16.481 9.94613 16.4433 10.0372C16.4056 10.1282 16.3503 10.2109 16.2806 10.2806Z" fill="#24A865"></path> </svg> </li><li class=""> <span class="option-label">D</span> <span class="option-data">Secondary and tertiary amines react with chloroform to form stable compounds.</span> </li> </ul>

correct_option:
<div class="correct-answer">
The correct answer is:
<span class="option-value">Primary amines have an available lone pair of electrons.</span> </div>

answer:
<div class="solution">Primary amines have an available lone pair of electrons on the nitrogen atom, which can react with chloroform to form isocyanides.</div>


title: why-do-secondary-and-tertiary-amines-not-react-with-nitrous-acid-in-the-same-way-as-primary-amines
tags: ['Chemistry', 'Amines', 'NEET']
source_db: MarksBatch2_P4.db
slug:
why-do-secondary-and-tertiary-amines-not-react-with-nitrous-acid-in-the-same-way-as-primary-amines-36368

question:
<div class="question">Why do secondary and tertiary amines not react with nitrous acid in the same way as primary amines?</div>

options:
<ul class="options"> <li class=""> <span class="option-label">A</span> <span class="option-data">They lack a nitrogen atom</span> </li><li class="correct"> <span class="option-label">B</span> <span class="option-data">They lack a lone pair of electrons on nitrogen</span> <svg fill="none" height="24" viewbox="0 0 24 24" width="24" xmlns="http://www.w3.org/2000/svg"> <path d="M12 2.25C10.0716 2.25 8.18657 2.82183 6.58319 3.89317C4.97982 4.96452 3.73013 6.48726 2.99218 8.26884C2.25422 10.0504 2.06114 12.0108 2.43735 13.9021C2.81355 15.7934 3.74215 17.5307 5.10571 18.8943C6.46928 20.2579 8.20656 21.1865 10.0979 21.5627C11.9892 21.9389 13.9496 21.7458 15.7312 21.0078C17.5127 20.2699 19.0355 19.0202 20.1068 17.4168C21.1782 15.8134 21.75 13.9284 21.75 12C21.7473 9.41498 20.7192 6.93661 18.8913 5.10872C17.0634 3.28084 14.585 2.25273 12 2.25ZM16.2806 10.2806L11.0306 15.5306C10.961 15.6004 10.8783 15.6557 10.7872 15.6934C10.6962 15.7312 10.5986 15.7506 10.5 15.7506C10.4014 15.7506 10.3038 15.7312 10.2128 15.6934C10.1218 15.6557 10.039 15.6004 9.96938 15.5306L7.71938 13.2806C7.57865 13.1399 7.49959 12.949 7.49959 12.75C7.49959 12.551 7.57865 12.3601 7.71938 12.2194C7.86011 12.0786 8.05098 11.9996 8.25 11.9996C8.44903 11.9996 8.6399 12.0786 8.78063 12.2194L10.5 13.9397L15.2194 9.21937C15.2891 9.14969 15.3718 9.09442 15.4628 9.0567C15.5539 9.01899 15.6515 8.99958 15.75 8.99958C15.8486 8.99958 15.9461 9.01899 16.0372 9.0567C16.1282 9.09442 16.2109 9.14969 16.2806 9.21937C16.3503 9.28906 16.4056 9.37178 16.4433 9.46283C16.481 9.55387 16.5004 9.65145 16.5004 9.75C16.5004 9.84855 16.481 9.94613 16.4433 10.0372C16.4056 10.1282 16.3503 10.2109 16.2806 10.2806Z" fill="#24A865"></path> </svg> </li><li class=""> <span class="option-label">C</span> <span class="option-data">They are less stable</span> </li><li class=""> <span class="option-label">D</span> <span class="option-data">They have a higher boiling point</span> </li> </ul>

correct_option:
<div class="correct-answer">
The correct answer is:
<span class="option-value">They lack a lone pair of electrons on nitrogen</span> </div>

answer:
<div class="solution">Secondary and tertiary amines lack a lone pair of electrons on the nitrogen atom, which is necessary for the reaction with nitrous acid.</div>


title: why-do-we-prefer-to-call-secondary-waste-water-treatment-as-biological-treatment
slug: why-do-we-prefer-to-call-secondary-waste-water-treatment-as-biological-treatment-22316
tags: ['Biology', 'Microbes in Human Welfare']
options: None
correct_option: None
source_db: MarksBatch2_P4.db
question:
<div class="question">Why do we prefer to call secondary waste water treatment as biological treatment?</div>

answer:
<div class="solution">In secondary waste water treatment, microorganisms are involved in the breakdown of organic matter in waste water treatment. Thus, it is called biological treatment.<br/>The primary effluent is passed into large aeration tanks where the organic matter present in it is consumed by aerobic microbes, which later themselves are digested by anaerobic bacteria and fungi in digesters with anaerobic sludge.</div>


title: why-is-an-open-system-capable-of-exchanging-both-energy-and-matter-with-the-surroundings
slug: why-is-an-open-system-capable-of-exchanging-both-energy-and-matter-with-the-surroundings-61750
tags: ['Chemistry', 'Thermodynamics (C)', 'NEET']
source_db: MarksBatch2_P4.db
question:
<div class="question">Why is an open system capable of exchanging both energy and matter with the surroundings?</div>

options:
<ul class="options"> <li class=""> <span class="option-label">A</span> <span class="option-data">It has no physical boundaries</span> </li><li class=""> <span class="option-label">B</span> <span class="option-data">It has a physical boundary that restricts matter exchange</span> </li><li class="correct"> <span class="option-label">C</span> <span class="option-data">It lacks a boundary, allowing unrestricted exchange</span> <svg fill="none" height="24" viewbox="0 0 24 24" width="24" xmlns="http://www.w3.org/2000/svg"> <path d="M12 2.25C10.0716 2.25 8.18657 2.82183 6.58319 3.89317C4.97982 4.96452 3.73013 6.48726 2.99218 8.26884C2.25422 10.0504 2.06114 12.0108 2.43735 13.9021C2.81355 15.7934 3.74215 17.5307 5.10571 18.8943C6.46928 20.2579 8.20656 21.1865 10.0979 21.5627C11.9892 21.9389 13.9496 21.7458 15.7312 21.0078C17.5127 20.2699 19.0355 19.0202 20.1068 17.4168C21.1782 15.8134 21.75 13.9284 21.75 12C21.7473 9.41498 20.7192 6.93661 18.8913 5.10872C17.0634 3.28084 14.585 2.25273 12 2.25ZM16.2806 10.2806L11.0306 15.5306C10.961 15.6004 10.8783 15.6557 10.7872 15.6934C10.6962 15.7312 10.5986 15.7506 10.5 15.7506C10.4014 15.7506 10.3038 15.7312 10.2128 15.6934C10.1218 15.6557 10.039 15.6004 9.96938 15.5306L7.71938 13.2806C7.57865 13.1399 7.49959 12.949 7.49959 12.75C7.49959 12.551 7.57865 12.3601 7.71938 12.2194C7.86011 12.0786 8.05098 11.9996 8.25 11.9996C8.44903 11.9996 8.6399 12.0786 8.78063 12.2194L10.5 13.9397L15.2194 9.21937C15.2891 9.14969 15.3718 9.09442 15.4628 9.0567C15.5539 9.01899 15.6515 8.99958 15.75 8.99958C15.8486 8.99958 15.9461 9.01899 16.0372 9.0567C16.1282 9.09442 16.2109 9.14969 16.2806 9.21937C16.3503 9.28906 16.4056 9.37178 16.4433 9.46283C16.481 9.55387 16.5004 9.65145 16.5004 9.75C16.5004 9.84855 16.481 9.94613 16.4433 10.0372C16.4056 10.1282 16.3503 10.2109 16.2806 10.2806Z" fill="#24A865"></path> </svg> </li><li class=""> <span class="option-label">D</span> <span class="option-data">It relies on chemical reactions to exchange energy</span> </li> </ul>

correct_option:
<div class="correct-answer">
The correct answer is:
<span class="option-value">It lacks a boundary, allowing unrestricted exchange</span> </div>

answer:
<div class="solution">An open system is characterized by the absence of a physical boundary, which enables the unrestricted exchange of both energy and matter.</div>


title: why-is-bimolecular-dehydration-not-appropriate-for-the-preparation-of-ethyl-methyl-ether
slug: why-is-bimolecular-dehydration-not-appropriate-for-the-preparation-of-ethyl-methyl-ether-33912
tags: ['Chemistry', 'Alcohols Phenols and Ethers', 'NEET']
source_db: MarksBatch2_P4.db
question:
<div class="question">Why is bimolecular dehydration not appropriate for the preparation of ethyl methyl ether?</div>

options:
<ul class="options"> <li class=""> <span class="option-label">A</span> <span class="option-data">Ethyl methyl ether is a tertiary ether.</span> </li><li class="correct"> <span class="option-label">B</span> <span class="option-data">Ethyl methyl ether has a secondary alkyl group.</span> <svg fill="none" height="24" viewbox="0 0 24 24" width="24" xmlns="http://www.w3.org/2000/svg"> <path d="M12 2.25C10.0716 2.25 8.18657 2.82183 6.58319 3.89317C4.97982 4.96452 3.73013 6.48726 2.99218 8.26884C2.25422 10.0504 2.06114 12.0108 2.43735 13.9021C2.81355 15.7934 3.74215 17.5307 5.10571 18.8943C6.46928 20.2579 8.20656 21.1865 10.0979 21.5627C11.9892 21.9389 13.9496 21.7458 15.7312 21.0078C17.5127 20.2699 19.0355 19.0202 20.1068 17.4168C21.1782 15.8134 21.75 13.9284 21.75 12C21.7473 9.41498 20.7192 6.93661 18.8913 5.10872C17.0634 3.28084 14.585 2.25273 12 2.25ZM16.2806 10.2806L11.0306 15.5306C10.961 15.6004 10.8783 15.6557 10.7872 15.6934C10.6962 15.7312 10.5986 15.7506 10.5 15.7506C10.4014 15.7506 10.3038 15.7312 10.2128 15.6934C10.1218 15.6557 10.039 15.6004 9.96938 15.5306L7.71938 13.2806C7.57865 13.1399 7.49959 12.949 7.49959 12.75C7.49959 12.551 7.57865 12.3601 7.71938 12.2194C7.86011 12.0786 8.05098 11.9996 8.25 11.9996C8.44903 11.9996 8.6399 12.0786 8.78063 12.2194L10.5 13.9397L15.2194 9.21937C15.2891 9.14969 15.3718 9.09442 15.4628 9.0567C15.5539 9.01899 15.6515 8.99958 15.75 8.99958C15.8486 8.99958 15.9461 9.01899 16.0372 9.0567C16.1282 9.09442 16.2109 9.14969 16.2806 9.21937C16.3503 9.28906 16.4056 9.37178 16.4433 9.46283C16.481 9.55387 16.5004 9.65145 16.5004 9.75C16.5004 9.84855 16.481 9.94613 16.4433 10.0372C16.4056 10.1282 16.3503 10.2109 16.2806 10.2806Z" fill="#24A865"></path> </svg> </li><li class=""> <span class="option-label">C</span> <span class="option-data">Ethyl methyl ether is a gaseous compound.</span> </li><li class=""> <span class="option-label">D</span> <span class="option-data">Ethyl methyl ether is highly reactive.</span> </li> </ul>

correct_option:
<div class="correct-answer">
The correct answer is:
<span class="option-value">Ethyl methyl ether has a secondary alkyl group.</span> </div>

answer:
<div class="solution">The steric hindrance caused by the secondary alkyl group hinders the SN2 reaction required for bimolecular dehydration.</div>


title: why-is-bromination-of-anisole-an-important-reaction-in-organic-chemistry
slug: why-is-bromination-of-anisole-an-important-reaction-in-organic-chemistry-20296
tags: ['Chemistry', 'Alcohols Phenols and Ethers', 'NEET']
source_db: MarksBatch2_P4.db
question:
<div class="question">Why is bromination of anisole an important reaction in organic chemistry?</div>

options:
<ul class="options"> <li class=""> <span class="option-label">A</span> <span class="option-data">It forms a complex mixture of products</span> </li><li class="correct"> <span class="option-label">B</span> <span class="option-data">It is a model reaction for electrophilic aromatic substitution</span> <svg fill="none" height="24" viewbox="0 0 24 24" width="24" xmlns="http://www.w3.org/2000/svg"> <path d="M12 2.25C10.0716 2.25 8.18657 2.82183 6.58319 3.89317C4.97982 4.96452 3.73013 6.48726 2.99218 8.26884C2.25422 10.0504 2.06114 12.0108 2.43735 13.9021C2.81355 15.7934 3.74215 17.5307 5.10571 18.8943C6.46928 20.2579 8.20656 21.1865 10.0979 21.5627C11.9892 21.9389 13.9496 21.7458 15.7312 21.0078C17.5127 20.2699 19.0355 19.0202 20.1068 17.4168C21.1782 15.8134 21.75 13.9284 21.75 12C21.7473 9.41498 20.7192 6.93661 18.8913 5.10872C17.0634 3.28084 14.585 2.25273 12 2.25ZM16.2806 10.2806L11.0306 15.5306C10.961 15.6004 10.8783 15.6557 10.7872 15.6934C10.6962 15.7312 10.5986 15.7506 10.5 15.7506C10.4014 15.7506 10.3038 15.7312 10.2128 15.6934C10.1218 15.6557 10.039 15.6004 9.96938 15.5306L7.71938 13.2806C7.57865 13.1399 7.49959 12.949 7.49959 12.75C7.49959 12.551 7.57865 12.3601 7.71938 12.2194C7.86011 12.0786 8.05098 11.9996 8.25 11.9996C8.44903 11.9996 8.6399 12.0786 8.78063 12.2194L10.5 13.9397L15.2194 9.21937C15.2891 9.14969 15.3718 9.09442 15.4628 9.0567C15.5539 9.01899 15.6515 8.99958 15.75 8.99958C15.8486 8.99958 15.9461 9.01899 16.0372 9.0567C16.1282 9.09442 16.2109 9.14969 16.2806 9.21937C16.3503 9.28906 16.4056 9.37178 16.4433 9.46283C16.481 9.55387 16.5004 9.65145 16.5004 9.75C16.5004 9.84855 16.481 9.94613 16.4433 10.0372C16.4056 10.1282 16.3503 10.2109 16.2806 10.2806Z" fill="#24A865"></path> </svg> </li><li class=""> <span class="option-label">C</span> <span class="option-data">It is a method for synthesising alcohols</span> </li><li class=""> <span class="option-label">D</span> <span class="option-data">It does not involve benzene rings</span> </li> </ul>

correct_option:
<div class="correct-answer">
The correct answer is:
<span class="option-value">It is a model reaction for electrophilic aromatic substitution</span> </div>

answer:
<div class="solution">Bromination of anisole is a well-studied example of electrophilic aromatic substitution, a fundamental reaction in organic chemistry.</div>


title: why-is-helium-used-in-diving-apparatus-1
slug: why-is-helium-used-in-diving-apparatus-1-96765
question: <div class="question">Why is helium used in diving apparatus?</div>
tags: ['Chemistry', 'p Block Elements (Group 13 & 14)', 'NEET']
source_db: MarksBatch2_P4.db
options:
<ul class="options"> <li class=""> <span class="option-label">A</span> <span class="option-data">Helium is abundant and cheap.</span> </li><li class="correct"> <span class="option-label">B</span> <span class="option-data">Helium is non-reactive and does not form dangerous compounds under high pressure.</span> <svg fill="none" height="24" viewbox="0 0 24 24" width="24" xmlns="http://www.w3.org/2000/svg"> <path d="M12 2.25C10.0716 2.25 8.18657 2.82183 6.58319 3.89317C4.97982 4.96452 3.73013 6.48726 2.99218 8.26884C2.25422 10.0504 2.06114 12.0108 2.43735 13.9021C2.81355 15.7934 3.74215 17.5307 5.10571 18.8943C6.46928 20.2579 8.20656 21.1865 10.0979 21.5627C11.9892 21.9389 13.9496 21.7458 15.7312 21.0078C17.5127 20.2699 19.0355 19.0202 20.1068 17.4168C21.1782 15.8134 21.75 13.9284 21.75 12C21.7473 9.41498 20.7192 6.93661 18.8913 5.10872C17.0634 3.28084 14.585 2.25273 12 2.25ZM16.2806 10.2806L11.0306 15.5306C10.961 15.6004 10.8783 15.6557 10.7872 15.6934C10.6962 15.7312 10.5986 15.7506 10.5 15.7506C10.4014 15.7506 10.3038 15.7312 10.2128 15.6934C10.1218 15.6557 10.039 15.6004 9.96938 15.5306L7.71938 13.2806C7.57865 13.1399 7.49959 12.949 7.49959 12.75C7.49959 12.551 7.57865 12.3601 7.71938 12.2194C7.86011 12.0786 8.05098 11.9996 8.25 11.9996C8.44903 11.9996 8.6399 12.0786 8.78063 12.2194L10.5 13.9397L15.2194 9.21937C15.2891 9.14969 15.3718 9.09442 15.4628 9.0567C15.5539 9.01899 15.6515 8.99958 15.75 8.99958C15.8486 8.99958 15.9461 9.01899 16.0372 9.0567C16.1282 9.09442 16.2109 9.14969 16.2806 9.21937C16.3503 9.28906 16.4056 9.37178 16.4433 9.46283C16.481 9.55387 16.5004 9.65145 16.5004 9.75C16.5004 9.84855 16.481 9.94613 16.4433 10.0372C16.4056 10.1282 16.3503 10.2109 16.2806 10.2806Z" fill="#24A865"></path> </svg> </li><li class=""> <span class="option-label">C</span> <span class="option-data">Helium is readily available in underwater environments.</span> </li><li class=""> <span class="option-label">D</span> <span class="option-data">Helium is a powerful oxidizing agent.</span> </li> </ul>

correct_option:
<div class="correct-answer">
The correct answer is:
<span class="option-value">Helium is non-reactive and does not form dangerous compounds under high pressure.</span> </div>

answer:
<div class="solution">Correct Option is : (B)<br/>Helium is non-reactive and does not form dangerous compounds under high pressure.</div>


title: why-is-hydrogen-considered-a-potential-source-of-energy
slug: why-is-hydrogen-considered-a-potential-source-of-energy-74963
question: <div class="question">Why is hydrogen considered a potential source of energy?</div>
tags: ['Chemistry', 'Hydrogen', 'NEET']
source_db: MarksBatch2_P4.db
options:
<ul class="options"> <li class=""> <span class="option-label">A</span> <span class="option-data">Because it is the most abundant element in the universe</span> </li><li class=""> <span class="option-label">B</span> <span class="option-data">Because it can be easily converted into electricity</span> </li><li class=""> <span class="option-label">C</span> <span class="option-data">Because it forms more compounds than any other element</span> </li><li class="correct"> <span class="option-label">D</span> <span class="option-data">Because it can release a large amount of energy when burned or used in fuel cells</span> <svg fill="none" height="24" viewbox="0 0 24 24" width="24" xmlns="http://www.w3.org/2000/svg"> <path d="M12 2.25C10.0716 2.25 8.18657 2.82183 6.58319 3.89317C4.97982 4.96452 3.73013 6.48726 2.99218 8.26884C2.25422 10.0504 2.06114 12.0108 2.43735 13.9021C2.81355 15.7934 3.74215 17.5307 5.10571 18.8943C6.46928 20.2579 8.20656 21.1865 10.0979 21.5627C11.9892 21.9389 13.9496 21.7458 15.7312 21.0078C17.5127 20.2699 19.0355 19.0202 20.1068 17.4168C21.1782 15.8134 21.75 13.9284 21.75 12C21.7473 9.41498 20.7192 6.93661 18.8913 5.10872C17.0634 3.28084 14.585 2.25273 12 2.25ZM16.2806 10.2806L11.0306 15.5306C10.961 15.6004 10.8783 15.6557 10.7872 15.6934C10.6962 15.7312 10.5986 15.7506 10.5 15.7506C10.4014 15.7506 10.3038 15.7312 10.2128 15.6934C10.1218 15.6557 10.039 15.6004 9.96938 15.5306L7.71938 13.2806C7.57865 13.1399 7.49959 12.949 7.49959 12.75C7.49959 12.551 7.57865 12.3601 7.71938 12.2194C7.86011 12.0786 8.05098 11.9996 8.25 11.9996C8.44903 11.9996 8.6399 12.0786 8.78063 12.2194L10.5 13.9397L15.2194 9.21937C15.2891 9.14969 15.3718 9.09442 15.4628 9.0567C15.5539 9.01899 15.6515 8.99958 15.75 8.99958C15.8486 8.99958 15.9461 9.01899 16.0372 9.0567C16.1282 9.09442 16.2109 9.14969 16.2806 9.21937C16.3503 9.28906 16.4056 9.37178 16.4433 9.46283C16.481 9.55387 16.5004 9.65145 16.5004 9.75C16.5004 9.84855 16.481 9.94613 16.4433 10.0372C16.4056 10.1282 16.3503 10.2109 16.2806 10.2806Z" fill="#24A865"></path> </svg> </li> </ul>

correct_option:
<div class="correct-answer">
The correct answer is:
<span class="option-value">Because it can release a large amount of energy when burned or used in fuel cells</span> </div>

answer:
<div class="solution">Hydrogen is considered a potential source of energy because it can release a large amount of energy when burned or used in fuel cells, making it a promising candidate for clean and efficient energy production.</div>


tags: ['Chemistry', 'Some Basic Concepts of Chemistry', 'NEET']
source_db: MarksBatch2_P4.db
title:
why-is-it-necessary-to-consider-the-existence-of-isotopes-and-their-relative-abundances-when-calculating-the-average-atomic-mass-of-an-element

slug:
why-is-it-necessary-to-consider-the-existence-of-isotopes-and-their-relative-abundances-when-calculating-the-average-atomic-mass-of-an-element-42109

question:
<div class="question">Why is it necessary to consider the existence of isotopes and their relative abundances when calculating the average atomic mass of an element?</div>

options:
<ul class="options"> <li class=""> <span class="option-label">A</span> <span class="option-data">To determine the most common isotope</span> </li><li class=""> <span class="option-label">B</span> <span class="option-data">To identify the heaviest isotope</span> </li><li class="correct"> <span class="option-label">C</span> <span class="option-data">To account for variations in atomic mass within the element</span> <svg fill="none" height="24" viewbox="0 0 24 24" width="24" xmlns="http://www.w3.org/2000/svg"> <path d="M12 2.25C10.0716 2.25 8.18657 2.82183 6.58319 3.89317C4.97982 4.96452 3.73013 6.48726 2.99218 8.26884C2.25422 10.0504 2.06114 12.0108 2.43735 13.9021C2.81355 15.7934 3.74215 17.5307 5.10571 18.8943C6.46928 20.2579 8.20656 21.1865 10.0979 21.5627C11.9892 21.9389 13.9496 21.7458 15.7312 21.0078C17.5127 20.2699 19.0355 19.0202 20.1068 17.4168C21.1782 15.8134 21.75 13.9284 21.75 12C21.7473 9.41498 20.7192 6.93661 18.8913 5.10872C17.0634 3.28084 14.585 2.25273 12 2.25ZM16.2806 10.2806L11.0306 15.5306C10.961 15.6004 10.8783 15.6557 10.7872 15.6934C10.6962 15.7312 10.5986 15.7506 10.5 15.7506C10.4014 15.7506 10.3038 15.7312 10.2128 15.6934C10.1218 15.6557 10.039 15.6004 9.96938 15.5306L7.71938 13.2806C7.57865 13.1399 7.49959 12.949 7.49959 12.75C7.49959 12.551 7.57865 12.3601 7.71938 12.2194C7.86011 12.0786 8.05098 11.9996 8.25 11.9996C8.44903 11.9996 8.6399 12.0786 8.78063 12.2194L10.5 13.9397L15.2194 9.21937C15.2891 9.14969 15.3718 9.09442 15.4628 9.0567C15.5539 9.01899 15.6515 8.99958 15.75 8.99958C15.8486 8.99958 15.9461 9.01899 16.0372 9.0567C16.1282 9.09442 16.2109 9.14969 16.2806 9.21937C16.3503 9.28906 16.4056 9.37178 16.4433 9.46283C16.481 9.55387 16.5004 9.65145 16.5004 9.75C16.5004 9.84855 16.481 9.94613 16.4433 10.0372C16.4056 10.1282 16.3503 10.2109 16.2806 10.2806Z" fill="#24A865"></path> </svg> </li><li class=""> <span class="option-label">D</span> <span class="option-data">To simplify the calculation process</span> </li> </ul>

correct_option:
<div class="correct-answer">
The correct answer is:
<span class="option-value">To account for variations in atomic mass within the element</span> </div>

answer:
<div class="solution">Considering the existence of isotopes and their relative abundances is necessary to calculate the average atomic mass of an element, as it accounts for variations in atomic mass within the element.</div>


tags: ['Chemistry', 'Structure of Atom', 'NEET']
source_db: MarksBatch2_P4.db
title:
why-is-it-not-possible-to-draw-a-boundary-surface-diagram-that-bounds-a-region-with-a-100-probability-of-finding-the-electron

slug:
why-is-it-not-possible-to-draw-a-boundary-surface-diagram-that-bounds-a-region-with-a-100-probability-of-finding-the-electron-89997

question:
<div class="question">Why is it not possible to draw a boundary surface diagram that bounds a region with a 100% probability of finding the electron?</div>

options:
<ul class="options"> <li class=""> <span class="option-label">A</span> <span class="option-data">Because the probability density |Ï|Â² is zero at any finite distance from the nucleus.</span> </li><li class="correct"> <span class="option-label">B</span> <span class="option-data">Because the probability density |Ï|Â² has some value, no matter how small, at any finite distance from the nucleus.</span> <svg fill="none" height="24" viewbox="0 0 24 24" width="24" xmlns="http://www.w3.org/2000/svg"> <path d="M12 2.25C10.0716 2.25 8.18657 2.82183 6.58319 3.89317C4.97982 4.96452 3.73013 6.48726 2.99218 8.26884C2.25422 10.0504 2.06114 12.0108 2.43735 13.9021C2.81355 15.7934 3.74215 17.5307 5.10571 18.8943C6.46928 20.2579 8.20656 21.1865 10.0979 21.5627C11.9892 21.9389 13.9496 21.7458 15.7312 21.0078C17.5127 20.2699 19.0355 19.0202 20.1068 17.4168C21.1782 15.8134 21.75 13.9284 21.75 12C21.7473 9.41498 20.7192 6.93661 18.8913 5.10872C17.0634 3.28084 14.585 2.25273 12 2.25ZM16.2806 10.2806L11.0306 15.5306C10.961 15.6004 10.8783 15.6557 10.7872 15.6934C10.6962 15.7312 10.5986 15.7506 10.5 15.7506C10.4014 15.7506 10.3038 15.7312 10.2128 15.6934C10.1218 15.6557 10.039 15.6004 9.96938 15.5306L7.71938 13.2806C7.57865 13.1399 7.49959 12.949 7.49959 12.75C7.49959 12.551 7.57865 12.3601 7.71938 12.2194C7.86011 12.0786 8.05098 11.9996 8.25 11.9996C8.44903 11.9996 8.6399 12.0786 8.78063 12.2194L10.5 13.9397L15.2194 9.21937C15.2891 9.14969 15.3718 9.09442 15.4628 9.0567C15.5539 9.01899 15.6515 8.99958 15.75 8.99958C15.8486 8.99958 15.9461 9.01899 16.0372 9.0567C16.1282 9.09442 16.2109 9.14969 16.2806 9.21937C16.3503 9.28906 16.4056 9.37178 16.4433 9.46283C16.481 9.55387 16.5004 9.65145 16.5004 9.75C16.5004 9.84855 16.481 9.94613 16.4433 10.0372C16.4056 10.1282 16.3503 10.2109 16.2806 10.2806Z" fill="#24A865"></path> </svg> </li><li class=""> <span class="option-label">C</span> <span class="option-data">Because the shape of orbitals is not well-defined.</span> </li><li class=""> <span class="option-label">D</span> <span class="option-data">Because the size of the orbitals is too small to represent visually.</span> </li> </ul>

correct_option:
<div class="correct-answer">
The correct answer is:
<span class="option-value">Because the probability density |Ï|Â² has some value, no matter how small, at any finite distance from the nucleus.</span> </div>

answer:
<div class="solution">The probability density |Ï|Â² always has some value, no matter how small, at any finite distance from the nucleus, so it's not possible to draw a boundary surface diagram with a 100% probability region.</div>


tags: ['Biology', 'Human Health and Diseases']
options: None
correct_option: None
source_db: MarksBatch2_P4.db
title:
why-is-it-that-during-changing-weather-one-is-advised-to-avoid-closed-crowded-and-air-conditioned-places-like-cinema-halls-etc

slug:
why-is-it-that-during-changing-weather-one-is-advised-to-avoid-closed-crowded-and-air-conditioned-places-like-cinema-halls-etc-15074

question:
<div class="question">Why is it that during changing weather, one is advised to avoid closed, crowded and air conditioned places like cinema halls etc?</div>

answer:
<div class="solution">Changing of seasons are the times when infectious agents are more abundant as in moist condition pathogens grow fast. People are more vulnerable as their body system is adapting to the changing environmental conditions of temperature and humidity. Thus they are more prone to pathogen infection.</div>


title: why-is-mothers-milk-considered-essential-for-a-newborn-infant
slug: why-is-mothers-milk-considered-essential-for-a-newborn-infant-43675
question: <div class="question">Why is mother's milk considered essential for a newborn infant?</div>
tags: ['Biology', 'Human Health and Diseases', 'NEET']
source_db: MarksBatch2_P4.db
options:
<ul class="options"> <li class="correct"> <span class="option-label">A</span> <span class="option-data">It has abundant antibodies (IgA) to protect the infant</span> <svg fill="none" height="24" viewbox="0 0 24 24" width="24" xmlns="http://www.w3.org/2000/svg"> <path d="M12 2.25C10.0716 2.25 8.18657 2.82183 6.58319 3.89317C4.97982 4.96452 3.73013 6.48726 2.99218 8.26884C2.25422 10.0504 2.06114 12.0108 2.43735 13.9021C2.81355 15.7934 3.74215 17.5307 5.10571 18.8943C6.46928 20.2579 8.20656 21.1865 10.0979 21.5627C11.9892 21.9389 13.9496 21.7458 15.7312 21.0078C17.5127 20.2699 19.0355 19.0202 20.1068 17.4168C21.1782 15.8134 21.75 13.9284 21.75 12C21.7473 9.41498 20.7192 6.93661 18.8913 5.10872C17.0634 3.28084 14.585 2.25273 12 2.25ZM16.2806 10.2806L11.0306 15.5306C10.961 15.6004 10.8783 15.6557 10.7872 15.6934C10.6962 15.7312 10.5986 15.7506 10.5 15.7506C10.4014 15.7506 10.3038 15.7312 10.2128 15.6934C10.1218 15.6557 10.039 15.6004 9.96938 15.5306L7.71938 13.2806C7.57865 13.1399 7.49959 12.949 7.49959 12.75C7.49959 12.551 7.57865 12.3601 7.71938 12.2194C7.86011 12.0786 8.05098 11.9996 8.25 11.9996C8.44903 11.9996 8.6399 12.0786 8.78063 12.2194L10.5 13.9397L15.2194 9.21937C15.2891 9.14969 15.3718 9.09442 15.4628 9.0567C15.5539 9.01899 15.6515 8.99958 15.75 8.99958C15.8486 8.99958 15.9461 9.01899 16.0372 9.0567C16.1282 9.09442 16.2109 9.14969 16.2806 9.21937C16.3503 9.28906 16.4056 9.37178 16.4433 9.46283C16.481 9.55387 16.5004 9.65145 16.5004 9.75C16.5004 9.84855 16.481 9.94613 16.4433 10.0372C16.4056 10.1282 16.3503 10.2109 16.2806 10.2806Z" fill="#24A865"></path> </svg> </li><li class=""> <span class="option-label">B</span> <span class="option-data">It is yellowish fluid</span> </li><li class=""> <span class="option-label">C</span> <span class="option-data">It is secreted by mother during the initial days of lactation</span> </li><li class=""> <span class="option-label">D</span> <span class="option-data">It is the only source of nutrition for the infant</span> </li> </ul>

correct_option:
<div class="correct-answer">
The correct answer is:
<span class="option-value">It has abundant antibodies (IgA) to protect the infant</span> </div>

answer:
<div class="solution">Mother's milk is considered essential for a newborn infant because it has abundant antibodies (IgA) to protect the infant.</div>


title: why-is-nitrogen-a-limiting-nutrient-for-natural-and-agricultural-ecosystems
slug: why-is-nitrogen-a-limiting-nutrient-for-natural-and-agricultural-ecosystems-37647
tags: ['Biology', 'Mineral Nutrition', 'NEET']
source_db: MarksBatch2_P4.db
question:
<div class="question">Why is nitrogen a limiting nutrient for natural and agricultural ecosystems?</div>

options:
<ul class="options"> <li class=""> <span class="option-label">A</span> <span class="option-data">Nitrogen is abundant in soil</span> </li><li class=""> <span class="option-label">B</span> <span class="option-data">Nitrogen is not a constituent of amino acids, proteins, hormones, chlorophylls and vitamins</span> </li><li class=""> <span class="option-label">C</span> <span class="option-data">Nitrogen is not a limiting nutrient for natural and agricultural ecosystems</span> </li><li class="correct"> <span class="option-label">D</span> <span class="option-data">Nitrogen is a limiting nutrient for both natural and agricultural eco-systems as plants compete with microbes for the limited nitrogen available in soil.</span> <svg fill="none" height="24" viewbox="0 0 24 24" width="24" xmlns="http://www.w3.org/2000/svg"> <path d="M12 2.25C10.0716 2.25 8.18657 2.82183 6.58319 3.89317C4.97982 4.96452 3.73013 6.48726 2.99218 8.26884C2.25422 10.0504 2.06114 12.0108 2.43735 13.9021C2.81355 15.7934 3.74215 17.5307 5.10571 18.8943C6.46928 20.2579 8.20656 21.1865 10.0979 21.5627C11.9892 21.9389 13.9496 21.7458 15.7312 21.0078C17.5127 20.2699 19.0355 19.0202 20.1068 17.4168C21.1782 15.8134 21.75 13.9284 21.75 12C21.7473 9.41498 20.7192 6.93661 18.8913 5.10872C17.0634 3.28084 14.585 2.25273 12 2.25ZM16.2806 10.2806L11.0306 15.5306C10.961 15.6004 10.8783 15.6557 10.7872 15.6934C10.6962 15.7312 10.5986 15.7506 10.5 15.7506C10.4014 15.7506 10.3038 15.7312 10.2128 15.6934C10.1218 15.6557 10.039 15.6004 9.96938 15.5306L7.71938 13.2806C7.57865 13.1399 7.49959 12.949 7.49959 12.75C7.49959 12.551 7.57865 12.3601 7.71938 12.2194C7.86011 12.0786 8.05098 11.9996 8.25 11.9996C8.44903 11.9996 8.6399 12.0786 8.78063 12.2194L10.5 13.9397L15.2194 9.21937C15.2891 9.14969 15.3718 9.09442 15.4628 9.0567C15.5539 9.01899 15.6515 8.99958 15.75 8.99958C15.8486 8.99958 15.9461 9.01899 16.0372 9.0567C16.1282 9.09442 16.2109 9.14969 16.2806 9.21937C16.3503 9.28906 16.4056 9.37178 16.4433 9.46283C16.481 9.55387 16.5004 9.65145 16.5004 9.75C16.5004 9.84855 16.481 9.94613 16.4433 10.0372C16.4056 10.1282 16.3503 10.2109 16.2806 10.2806Z" fill="#24A865"></path> </svg> </li> </ul>

correct_option:
<div class="correct-answer">
The correct answer is:
<span class="option-value">Nitrogen is a limiting nutrient for both natural and agricultural eco-systems as plants compete with microbes for the limited nitrogen available in soil.</span> </div>

answer:
<div class="solution">Nitrogen is a limiting nutrient for both natural and agricultural eco-systems as plants compete with microbes for the limited nitrogen that is available in soil.</div>


title: why-is-rubisco-the-most-abundant-enzyme-in-the-world
slug: why-is-rubisco-the-most-abundant-enzyme-in-the-world-75346
question: <div class="question">Why is RuBisCO the most abundant enzyme in the world?</div>
tags: ['Biology', 'Photosynthesis in Higher Plants', 'NEET']
source_db: MarksBatch2_P4.db
options:
<ul class="options"> <li class=""> <span class="option-label">A</span> <span class="option-data">It has a much greater affinity for Oâ than COâ</span> </li><li class="correct"> <span class="option-label">B</span> <span class="option-data">It has a much greater affinity for COâ when the COâ:Oâ is nearly equal</span> <svg fill="none" height="24" viewbox="0 0 24 24" width="24" xmlns="http://www.w3.org/2000/svg"> <path d="M12 2.25C10.0716 2.25 8.18657 2.82183 6.58319 3.89317C4.97982 4.96452 3.73013 6.48726 2.99218 8.26884C2.25422 10.0504 2.06114 12.0108 2.43735 13.9021C2.81355 15.7934 3.74215 17.5307 5.10571 18.8943C6.46928 20.2579 8.20656 21.1865 10.0979 21.5627C11.9892 21.9389 13.9496 21.7458 15.7312 21.0078C17.5127 20.2699 19.0355 19.0202 20.1068 17.4168C21.1782 15.8134 21.75 13.9284 21.75 12C21.7473 9.41498 20.7192 6.93661 18.8913 5.10872C17.0634 3.28084 14.585 2.25273 12 2.25ZM16.2806 10.2806L11.0306 15.5306C10.961 15.6004 10.8783 15.6557 10.7872 15.6934C10.6962 15.7312 10.5986 15.7506 10.5 15.7506C10.4014 15.7506 10.3038 15.7312 10.2128 15.6934C10.1218 15.6557 10.039 15.6004 9.96938 15.5306L7.71938 13.2806C7.57865 13.1399 7.49959 12.949 7.49959 12.75C7.49959 12.551 7.57865 12.3601 7.71938 12.2194C7.86011 12.0786 8.05098 11.9996 8.25 11.9996C8.44903 11.9996 8.6399 12.0786 8.78063 12.2194L10.5 13.9397L15.2194 9.21937C15.2891 9.14969 15.3718 9.09442 15.4628 9.0567C15.5539 9.01899 15.6515 8.99958 15.75 8.99958C15.8486 8.99958 15.9461 9.01899 16.0372 9.0567C16.1282 9.09442 16.2109 9.14969 16.2806 9.21937C16.3503 9.28906 16.4056 9.37178 16.4433 9.46283C16.481 9.55387 16.5004 9.65145 16.5004 9.75C16.5004 9.84855 16.481 9.94613 16.4433 10.0372C16.4056 10.1282 16.3503 10.2109 16.2806 10.2806Z" fill="#24A865"></path> </svg> </li><li class=""> <span class="option-label">C</span> <span class="option-data">It is the only enzyme that can catalyse the reaction between RuBP and COâ</span> </li><li class=""> <span class="option-label">D</span> <span class="option-data">It has a much greater affinity for COâ than Oâ</span> </li> </ul>

correct_option:
<div class="correct-answer">
The correct answer is:
<span class="option-value">It has a much greater affinity for COâ when the COâ:Oâ is nearly equal</span> </div>

answer:
<div class="solution">RuBisCO is the most abundant enzyme in the world because it has a much greater affinity for COâ when the COâ:Oâ is nearly equal, which is the characteristic that makes it so abundant.</div>


title: why-is-the-equilibrium-between-ice-and-water-described-as-dynamic
slug: why-is-the-equilibrium-between-ice-and-water-described-as-dynamic-72894
question: <div class="question">Why is the equilibrium between ice and water described as dynamic?</div>
tags: ['Chemistry', 'Chemical Equilibrium', 'NEET']
answer: <div class="solution">In dynamic equilibrium, both opposing processes occur simultaneously.</div>
source_db: MarksBatch2_P4.db
options:
<ul class="options"> <li class=""> <span class="option-label">A</span> <span class="option-data">Because there is no activity at the boundary between ice and water.</span> </li><li class=""> <span class="option-label">B</span> <span class="option-data">Because the temperature is constantly changing.</span> </li><li class="correct"> <span class="option-label">C</span> <span class="option-data">Because both opposing processes occur simultaneously.</span> <svg fill="none" height="24" viewbox="0 0 24 24" width="24" xmlns="http://www.w3.org/2000/svg"> <path d="M12 2.25C10.0716 2.25 8.18657 2.82183 6.58319 3.89317C4.97982 4.96452 3.73013 6.48726 2.99218 8.26884C2.25422 10.0504 2.06114 12.0108 2.43735 13.9021C2.81355 15.7934 3.74215 17.5307 5.10571 18.8943C6.46928 20.2579 8.20656 21.1865 10.0979 21.5627C11.9892 21.9389 13.9496 21.7458 15.7312 21.0078C17.5127 20.2699 19.0355 19.0202 20.1068 17.4168C21.1782 15.8134 21.75 13.9284 21.75 12C21.7473 9.41498 20.7192 6.93661 18.8913 5.10872C17.0634 3.28084 14.585 2.25273 12 2.25ZM16.2806 10.2806L11.0306 15.5306C10.961 15.6004 10.8783 15.6557 10.7872 15.6934C10.6962 15.7312 10.5986 15.7506 10.5 15.7506C10.4014 15.7506 10.3038 15.7312 10.2128 15.6934C10.1218 15.6557 10.039 15.6004 9.96938 15.5306L7.71938 13.2806C7.57865 13.1399 7.49959 12.949 7.49959 12.75C7.49959 12.551 7.57865 12.3601 7.71938 12.2194C7.86011 12.0786 8.05098 11.9996 8.25 11.9996C8.44903 11.9996 8.6399 12.0786 8.78063 12.2194L10.5 13.9397L15.2194 9.21937C15.2891 9.14969 15.3718 9.09442 15.4628 9.0567C15.5539 9.01899 15.6515 8.99958 15.75 8.99958C15.8486 8.99958 15.9461 9.01899 16.0372 9.0567C16.1282 9.09442 16.2109 9.14969 16.2806 9.21937C16.3503 9.28906 16.4056 9.37178 16.4433 9.46283C16.481 9.55387 16.5004 9.65145 16.5004 9.75C16.5004 9.84855 16.481 9.94613 16.4433 10.0372C16.4056 10.1282 16.3503 10.2109 16.2806 10.2806Z" fill="#24A865"></path> </svg> </li><li class=""> <span class="option-label">D</span> <span class="option-data">Because there is a change in the mass of ice and water.</span> </li> </ul>

correct_option:
<div class="correct-answer">
The correct answer is:
<span class="option-value">Because both opposing processes occur simultaneously.</span> </div>


title: why-is-zinc-not-extracted-from-zinc-oxide-through-reduction-using-mathrmco
slug: why-is-zinc-not-extracted-from-zinc-oxide-through-reduction-using-mathrmco-99539
tags: ['Chemistry', 'General Principles and Processes of Isolation of Metals']
options: None
correct_option: None
source_db: MarksBatch2_P4.db
question:
<div class="question">Why is zinc not extracted from zinc oxide through reduction using \(\mathrm{CO}\) ?</div>

answer:
<div class="solution">This is because the standard free energy of formation of \(\mathrm{CO}_2\) from \(\mathrm{CO}\) is higher than that of standard free energy of formation of \(\mathrm{ZnO}\) from \(\mathrm{Zn}\).</div>


title: why-should-not-medicines-be-taken-without-consulting-doctors-1
slug: why-should-not-medicines-be-taken-without-consulting-doctors-1-72530
question: <div class="question">Why should not medicines be taken without consulting doctors?</div>
tags: ['Chemistry', 'Chemistry in Everyday Life', 'NEET']
source_db: MarksBatch2_P4.db
options:
<ul class="options"> <li class=""> <span class="option-label">A</span> <span class="option-data">Doctors need to be consulted for insurance purposes</span> </li><li class="correct"> <span class="option-label">B</span> <span class="option-data">Medicines may have side effects or interact with other drugs</span> <svg fill="none" height="24" viewbox="0 0 24 24" width="24" xmlns="http://www.w3.org/2000/svg"> <path d="M12 2.25C10.0716 2.25 8.18657 2.82183 6.58319 3.89317C4.97982 4.96452 3.73013 6.48726 2.99218 8.26884C2.25422 10.0504 2.06114 12.0108 2.43735 13.9021C2.81355 15.7934 3.74215 17.5307 5.10571 18.8943C6.46928 20.2579 8.20656 21.1865 10.0979 21.5627C11.9892 21.9389 13.9496 21.7458 15.7312 21.0078C17.5127 20.2699 19.0355 19.0202 20.1068 17.4168C21.1782 15.8134 21.75 13.9284 21.75 12C21.7473 9.41498 20.7192 6.93661 18.8913 5.10872C17.0634 3.28084 14.585 2.25273 12 2.25ZM16.2806 10.2806L11.0306 15.5306C10.961 15.6004 10.8783 15.6557 10.7872 15.6934C10.6962 15.7312 10.5986 15.7506 10.5 15.7506C10.4014 15.7506 10.3038 15.7312 10.2128 15.6934C10.1218 15.6557 10.039 15.6004 9.96938 15.5306L7.71938 13.2806C7.57865 13.1399 7.49959 12.949 7.49959 12.75C7.49959 12.551 7.57865 12.3601 7.71938 12.2194C7.86011 12.0786 8.05098 11.9996 8.25 11.9996C8.44903 11.9996 8.6399 12.0786 8.78063 12.2194L10.5 13.9397L15.2194 9.21937C15.2891 9.14969 15.3718 9.09442 15.4628 9.0567C15.5539 9.01899 15.6515 8.99958 15.75 8.99958C15.8486 8.99958 15.9461 9.01899 16.0372 9.0567C16.1282 9.09442 16.2109 9.14969 16.2806 9.21937C16.3503 9.28906 16.4056 9.37178 16.4433 9.46283C16.481 9.55387 16.5004 9.65145 16.5004 9.75C16.5004 9.84855 16.481 9.94613 16.4433 10.0372C16.4056 10.1282 16.3503 10.2109 16.2806 10.2806Z" fill="#24A865"></path> </svg> </li><li class=""> <span class="option-label">C</span> <span class="option-data">Doctors need to know which medicines are popular</span> </li><li class=""> <span class="option-label">D</span> <span class="option-data">Medicines are not effective without a doctor's recommendation</span> </li> </ul>

correct_option:
<div class="correct-answer">
The correct answer is:
<span class="option-value">Medicines may have side effects or interact with other drugs</span> </div>

answer:
<div class="solution">Correct Option is : (B)<br/>Medicines may have side effects or interact with other drugs</div>


title: wind-pollinated-flowers-are-1
slug: wind-pollinated-flowers-are-1-43657
question: <div class="question">Wind pollinated flowers are</div>
tags: ['Biology', 'Sexual Reproduction in Flowering Plants', 'NEET']
source_db: MarksBatch2_P4.db
options:
<ul class="options"> <li class=""> <span class="option-label">A</span> <span class="option-data">Small, brightly coloured, producing large number of pollen grains</span> </li><li class="correct"> <span class="option-label">B</span> <span class="option-data">Small, producing large number of dry pollen grains</span> <svg fill="none" height="24" viewbox="0 0 24 24" width="24" xmlns="http://www.w3.org/2000/svg"> <path d="M12 2.25C10.0716 2.25 8.18657 2.82183 6.58319 3.89317C4.97982 4.96452 3.73013 6.48726 2.99218 8.26884C2.25422 10.0504 2.06114 12.0108 2.43735 13.9021C2.81355 15.7934 3.74215 17.5307 5.10571 18.8943C6.46928 20.2579 8.20656 21.1865 10.0979 21.5627C11.9892 21.9389 13.9496 21.7458 15.7312 21.0078C17.5127 20.2699 19.0355 19.0202 20.1068 17.4168C21.1782 15.8134 21.75 13.9284 21.75 12C21.7473 9.41498 20.7192 6.93661 18.8913 5.10872C17.0634 3.28084 14.585 2.25273 12 2.25ZM16.2806 10.2806L11.0306 15.5306C10.961 15.6004 10.8783 15.6557 10.7872 15.6934C10.6962 15.7312 10.5986 15.7506 10.5 15.7506C10.4014 15.7506 10.3038 15.7312 10.2128 15.6934C10.1218 15.6557 10.039 15.6004 9.96938 15.5306L7.71938 13.2806C7.57865 13.1399 7.49959 12.949 7.49959 12.75C7.49959 12.551 7.57865 12.3601 7.71938 12.2194C7.86011 12.0786 8.05098 11.9996 8.25 11.9996C8.44903 11.9996 8.6399 12.0786 8.78063 12.2194L10.5 13.9397L15.2194 9.21937C15.2891 9.14969 15.3718 9.09442 15.4628 9.0567C15.5539 9.01899 15.6515 8.99958 15.75 8.99958C15.8486 8.99958 15.9461 9.01899 16.0372 9.0567C16.1282 9.09442 16.2109 9.14969 16.2806 9.21937C16.3503 9.28906 16.4056 9.37178 16.4433 9.46283C16.481 9.55387 16.5004 9.65145 16.5004 9.75C16.5004 9.84855 16.481 9.94613 16.4433 10.0372C16.4056 10.1282 16.3503 10.2109 16.2806 10.2806Z" fill="#24A865"></path> </svg> </li><li class=""> <span class="option-label">C</span> <span class="option-data">Large, producing abundant nectar and pollen</span> </li><li class=""> <span class="option-label">D</span> <span class="option-data">Small, producing nectar and dry pollen</span> </li> </ul>

correct_option:
<div class="correct-answer">
The correct answer is:
<span class="option-value">Small, producing large number of dry pollen grains</span> </div>

answer:
<div class="solution">Pollination by wind is called anemophily, and such plants in which pollination occurs by wind are called anemophilous plants. Anemophilous plants are characterized by small flowers, pollens present in large numbers which are small, dry and light in weight. Numerous ovules are generally reduced in the ovary, and they have feathery or brushy stigma (to receive the pollen). Grasses and palms are generally anemophilous.</div>


title: wind-pollinated-flowers-are-2
slug: wind-pollinated-flowers-are-2-67606
question: <div class="question">Wind pollinated flowers are</div>
tags: ['Biology', 'Sexual Reproduction in Flowering Plants', 'NEET', 'NEET 2010 (Screening)']
source_db: MarksBatch2_P4.db
options:
<ul class="options"> <li class=""> <span class="option-label">A</span> <span class="option-data">small, brightly coloured, producing large number of pollen grains</span> </li><li class="correct"> <span class="option-label">B</span> <span class="option-data">small, producing large number of dry pollen grains</span> <svg fill="none" height="24" viewbox="0 0 24 24" width="24" xmlns="http://www.w3.org/2000/svg"> <path d="M12 2.25C10.0716 2.25 8.18657 2.82183 6.58319 3.89317C4.97982 4.96452 3.73013 6.48726 2.99218 8.26884C2.25422 10.0504 2.06114 12.0108 2.43735 13.9021C2.81355 15.7934 3.74215 17.5307 5.10571 18.8943C6.46928 20.2579 8.20656 21.1865 10.0979 21.5627C11.9892 21.9389 13.9496 21.7458 15.7312 21.0078C17.5127 20.2699 19.0355 19.0202 20.1068 17.4168C21.1782 15.8134 21.75 13.9284 21.75 12C21.7473 9.41498 20.7192 6.93661 18.8913 5.10872C17.0634 3.28084 14.585 2.25273 12 2.25ZM16.2806 10.2806L11.0306 15.5306C10.961 15.6004 10.8783 15.6557 10.7872 15.6934C10.6962 15.7312 10.5986 15.7506 10.5 15.7506C10.4014 15.7506 10.3038 15.7312 10.2128 15.6934C10.1218 15.6557 10.039 15.6004 9.96938 15.5306L7.71938 13.2806C7.57865 13.1399 7.49959 12.949 7.49959 12.75C7.49959 12.551 7.57865 12.3601 7.71938 12.2194C7.86011 12.0786 8.05098 11.9996 8.25 11.9996C8.44903 11.9996 8.6399 12.0786 8.78063 12.2194L10.5 13.9397L15.2194 9.21937C15.2891 9.14969 15.3718 9.09442 15.4628 9.0567C15.5539 9.01899 15.6515 8.99958 15.75 8.99958C15.8486 8.99958 15.9461 9.01899 16.0372 9.0567C16.1282 9.09442 16.2109 9.14969 16.2806 9.21937C16.3503 9.28906 16.4056 9.37178 16.4433 9.46283C16.481 9.55387 16.5004 9.65145 16.5004 9.75C16.5004 9.84855 16.481 9.94613 16.4433 10.0372C16.4056 10.1282 16.3503 10.2109 16.2806 10.2806Z" fill="#24A865"></path> </svg> </li><li class=""> <span class="option-label">C</span> <span class="option-data">large, producing abundant nectar and pollen</span> </li><li class=""> <span class="option-label">D</span> <span class="option-data">small, producing nectar and dry pollen</span> </li> </ul>

correct_option:
<div class="correct-answer">
The correct answer is:
<span class="option-value">small, producing large number of dry pollen grains</span> </div>

answer:
<div class="solution">Pollination taking place by means of wind is known as anemophily, eg, Zea mays, Cannabis, Pinus, etc. Some features of wind pollinated flowers are-<br/>(i) Non-essential whorls such as calyx, corolla and bracts, bracteoles are not showy.<br/>(ii) The perianth lobes are undeveloped or reduced and sometimes absent.<br/>(iii) Flowers are devoid of scent and nectars.<br/>(iv) Plants produce a very large quantity of dusty pollen grains.<br/>(v) Pollen grains are dry, very small sized, non-sticky and unwettable These features are helpful for individuality of pollen grains.</div>


title: wind-pollinated-flowers-are
slug: wind-pollinated-flowers-are-70461
question: <div class="question">Wind pollinated flowers are</div>
tags: ['Biology', 'Sexual Reproduction in Flowering Plants', 'NEET']
source_db: MarksBatch2_P4.db
options:
<ul class="options"> <li class=""> <span class="option-label">A</span> <span class="option-data">small, brightly coloured, producing large number of pollen grains.</span> </li><li class="correct"> <span class="option-label">B</span> <span class="option-data">small, producing a large number of dry pollen grains, feathery stigma.</span> <svg fill="none" height="24" viewbox="0 0 24 24" width="24" xmlns="http://www.w3.org/2000/svg"> <path d="M12 2.25C10.0716 2.25 8.18657 2.82183 6.58319 3.89317C4.97982 4.96452 3.73013 6.48726 2.99218 8.26884C2.25422 10.0504 2.06114 12.0108 2.43735 13.9021C2.81355 15.7934 3.74215 17.5307 5.10571 18.8943C6.46928 20.2579 8.20656 21.1865 10.0979 21.5627C11.9892 21.9389 13.9496 21.7458 15.7312 21.0078C17.5127 20.2699 19.0355 19.0202 20.1068 17.4168C21.1782 15.8134 21.75 13.9284 21.75 12C21.7473 9.41498 20.7192 6.93661 18.8913 5.10872C17.0634 3.28084 14.585 2.25273 12 2.25ZM16.2806 10.2806L11.0306 15.5306C10.961 15.6004 10.8783 15.6557 10.7872 15.6934C10.6962 15.7312 10.5986 15.7506 10.5 15.7506C10.4014 15.7506 10.3038 15.7312 10.2128 15.6934C10.1218 15.6557 10.039 15.6004 9.96938 15.5306L7.71938 13.2806C7.57865 13.1399 7.49959 12.949 7.49959 12.75C7.49959 12.551 7.57865 12.3601 7.71938 12.2194C7.86011 12.0786 8.05098 11.9996 8.25 11.9996C8.44903 11.9996 8.6399 12.0786 8.78063 12.2194L10.5 13.9397L15.2194 9.21937C15.2891 9.14969 15.3718 9.09442 15.4628 9.0567C15.5539 9.01899 15.6515 8.99958 15.75 8.99958C15.8486 8.99958 15.9461 9.01899 16.0372 9.0567C16.1282 9.09442 16.2109 9.14969 16.2806 9.21937C16.3503 9.28906 16.4056 9.37178 16.4433 9.46283C16.481 9.55387 16.5004 9.65145 16.5004 9.75C16.5004 9.84855 16.481 9.94613 16.4433 10.0372C16.4056 10.1282 16.3503 10.2109 16.2806 10.2806Z" fill="#24A865"></path> </svg> </li><li class=""> <span class="option-label">C</span> <span class="option-data">large, producing abundant nectar and pollen.</span> </li><li class=""> <span class="option-label">D</span> <span class="option-data">small, nectar producing, pollen are dry.</span> </li> </ul>

correct_option:
<div class="correct-answer">
The correct answer is:
<span class="option-value">small, producing a large number of dry pollen grains, feathery stigma.</span> </div>

answer:
<div class="solution">Pollination by wind is called anemophily and such plants in which pollination occurs by wind are called anemophilous plants. Anemophilous plants are characteristized by small flowers, pollens present in large number which are small, dry and light in weight number of ovules generally reduced in ovary (biological significance), feathery or brushy stigma (to receive the pollen). Grasses and palms are generally anemophilous.</div>


tags: ['Physics', 'Oscillations', 'AP EAMCET', 'AP EAMCET 2005']
correct_option: <div class="correct-answer"> The correct answer is: <span class="option-value">1</span> </div>
source_db: MarksBatch2_P4.db
title:
with-a-standard-rectangular-bar-magnet-of-length-l-breadth-b-b-l-and-magnetic-moment-m-the-time-period-of-the-magnet-in-a-vibration-magnetometer-is-4--1

slug:
with-a-standard-rectangular-bar-magnet-of-length-l-breadth-b-b-l-and-magnetic-moment-m-the-time-period-of-the-magnet-in-a-vibration-magnetometer-is-4-1-16309

question:
<div class="question">With a standard rectangular bar magnet of length (l), breadth $(b ; b&lt; &lt; l)$ and magnetic moment $M$, the time period of the magnet in a vibration magnetometer is $4 \mathrm{~s}$. If the magnet is cut normal to its length into four equal pieces, the time period (in seconds) with one of the pieces is</div>

options:
<ul class="options"> <li class=""> <span class="option-label">A</span> <span class="option-data">16</span> </li><li class=""> <span class="option-label">B</span> <span class="option-data">2</span> </li><li class="correct"> <span class="option-label">C</span> <span class="option-data">1</span> <svg fill="none" height="24" viewbox="0 0 24 24" width="24" xmlns="http://www.w3.org/2000/svg"> <path d="M12 2.25C10.0716 2.25 8.18657 2.82183 6.58319 3.89317C4.97982 4.96452 3.73013 6.48726 2.99218 8.26884C2.25422 10.0504 2.06114 12.0108 2.43735 13.9021C2.81355 15.7934 3.74215 17.5307 5.10571 18.8943C6.46928 20.2579 8.20656 21.1865 10.0979 21.5627C11.9892 21.9389 13.9496 21.7458 15.7312 21.0078C17.5127 20.2699 19.0355 19.0202 20.1068 17.4168C21.1782 15.8134 21.75 13.9284 21.75 12C21.7473 9.41498 20.7192 6.93661 18.8913 5.10872C17.0634 3.28084 14.585 2.25273 12 2.25ZM16.2806 10.2806L11.0306 15.5306C10.961 15.6004 10.8783 15.6557 10.7872 15.6934C10.6962 15.7312 10.5986 15.7506 10.5 15.7506C10.4014 15.7506 10.3038 15.7312 10.2128 15.6934C10.1218 15.6557 10.039 15.6004 9.96938 15.5306L7.71938 13.2806C7.57865 13.1399 7.49959 12.949 7.49959 12.75C7.49959 12.551 7.57865 12.3601 7.71938 12.2194C7.86011 12.0786 8.05098 11.9996 8.25 11.9996C8.44903 11.9996 8.6399 12.0786 8.78063 12.2194L10.5 13.9397L15.2194 9.21937C15.2891 9.14969 15.3718 9.09442 15.4628 9.0567C15.5539 9.01899 15.6515 8.99958 15.75 8.99958C15.8486 8.99958 15.9461 9.01899 16.0372 9.0567C16.1282 9.09442 16.2109 9.14969 16.2806 9.21937C16.3503 9.28906 16.4056 9.37178 16.4433 9.46283C16.481 9.55387 16.5004 9.65145 16.5004 9.75C16.5004 9.84855 16.481 9.94613 16.4433 10.0372C16.4056 10.1282 16.3503 10.2109 16.2806 10.2806Z" fill="#24A865"></path> </svg> </li><li class=""> <span class="option-label">D</span> <span class="option-data">$1 / 4$</span> </li> </ul>

answer:
<div class="solution">Time period of magnet in vibration magnetometer,<br/>$T=2 \pi \sqrt{\frac{1}{M H}}$<br/>where, $I=$ moment of inertia of magnet<br/>$M=$ magnetic moment<br/>$H=$ horizontal component of earth's magnetic field<br/>$\begin{aligned}<br/>&amp; \therefore \quad \frac{T_1}{T_2}=\sqrt{\frac{I_1}{I_2} \cdot \frac{M_2}{M_1}} \\<br/>&amp; \Rightarrow \quad \frac{4}{T_2}=\sqrt{\frac{m l^2 / 12}{m / 4(l / 4)^2 / 12}} \\<br/>&amp; =\sqrt{\frac{4 \times 16 \times 12}{12 \times 4}}=\sqrt{16} \\<br/>&amp; \Rightarrow \quad \frac{4}{T_2}=4 \\<br/>&amp; \therefore \quad T_2=1 \mathrm{~s} \\<br/>&amp;<br/>\end{aligned}$</div>


tags: ['Physics', 'Oscillations', 'TS EAMCET', 'TS EAMCET 2005']
correct_option: <div class="correct-answer"> The correct answer is: <span class="option-value">1</span> </div>
source_db: MarksBatch2_P4.db
title:
with-a-standard-rectangular-bar-magnet-of-length-l-breadth-b-b-l-and-magnetic-moment-m-the-time-period-of-the-magnet-in-a-vibration-magnetometer-is-4-

slug:
with-a-standard-rectangular-bar-magnet-of-length-l-breadth-b-b-l-and-magnetic-moment-m-the-time-period-of-the-magnet-in-a-vibration-magnetometer-is-4-45344

question:
<div class="question">With a standard rectangular bar magnet of length (l), breadth $(b ; b&lt; &lt; l)$ and magnetic moment $M$, the time period of the magnet in a vibration magnetometer is $4 \mathrm{~s}$. If the magnet is cut normal to its length into four equal pieces, the time period (in seconds) with one of the pieces is</div>

options:
<ul class="options"> <li class=""> <span class="option-label">A</span> <span class="option-data">16</span> </li><li class=""> <span class="option-label">B</span> <span class="option-data">2</span> </li><li class="correct"> <span class="option-label">C</span> <span class="option-data">1</span> <svg fill="none" height="24" viewbox="0 0 24 24" width="24" xmlns="http://www.w3.org/2000/svg"> <path d="M12 2.25C10.0716 2.25 8.18657 2.82183 6.58319 3.89317C4.97982 4.96452 3.73013 6.48726 2.99218 8.26884C2.25422 10.0504 2.06114 12.0108 2.43735 13.9021C2.81355 15.7934 3.74215 17.5307 5.10571 18.8943C6.46928 20.2579 8.20656 21.1865 10.0979 21.5627C11.9892 21.9389 13.9496 21.7458 15.7312 21.0078C17.5127 20.2699 19.0355 19.0202 20.1068 17.4168C21.1782 15.8134 21.75 13.9284 21.75 12C21.7473 9.41498 20.7192 6.93661 18.8913 5.10872C17.0634 3.28084 14.585 2.25273 12 2.25ZM16.2806 10.2806L11.0306 15.5306C10.961 15.6004 10.8783 15.6557 10.7872 15.6934C10.6962 15.7312 10.5986 15.7506 10.5 15.7506C10.4014 15.7506 10.3038 15.7312 10.2128 15.6934C10.1218 15.6557 10.039 15.6004 9.96938 15.5306L7.71938 13.2806C7.57865 13.1399 7.49959 12.949 7.49959 12.75C7.49959 12.551 7.57865 12.3601 7.71938 12.2194C7.86011 12.0786 8.05098 11.9996 8.25 11.9996C8.44903 11.9996 8.6399 12.0786 8.78063 12.2194L10.5 13.9397L15.2194 9.21937C15.2891 9.14969 15.3718 9.09442 15.4628 9.0567C15.5539 9.01899 15.6515 8.99958 15.75 8.99958C15.8486 8.99958 15.9461 9.01899 16.0372 9.0567C16.1282 9.09442 16.2109 9.14969 16.2806 9.21937C16.3503 9.28906 16.4056 9.37178 16.4433 9.46283C16.481 9.55387 16.5004 9.65145 16.5004 9.75C16.5004 9.84855 16.481 9.94613 16.4433 10.0372C16.4056 10.1282 16.3503 10.2109 16.2806 10.2806Z" fill="#24A865"></path> </svg> </li><li class=""> <span class="option-label">D</span> <span class="option-data">$1 / 4$</span> </li> </ul>

answer:
<div class="solution">Time period of magnet in vibration magnetometer,<br/>$T=2 \pi \sqrt{\frac{1}{M H}}$<br/>where, $I=$ moment of inertia of magnet<br/>$M=$ magnetic moment<br/>$H=$ horizontal component of earth's magnetic field<br/>$\begin{aligned}<br/>&amp; \therefore \quad \frac{T_1}{T_2}=\sqrt{\frac{I_1}{I_2} \cdot \frac{M_2}{M_1}} \\<br/>&amp; \Rightarrow \quad \frac{4}{T_2}=\sqrt{\frac{m l^2 / 12}{m / 4(l / 4)^2 / 12}} \\<br/>&amp; =\sqrt{\frac{4 \times 16 \times 12}{12 \times 4}}=\sqrt{16} \\<br/>&amp; \Rightarrow \quad \frac{4}{T_2}=4 \\<br/>&amp; \therefore \quad T_2=1 \mathrm{~s} \\<br/>&amp;<br/>\end{aligned}$</div>


tags: ['Physics', 'Magnetic Properties of Matter', 'TS EAMCET', 'TS EAMCET 2008']
correct_option: <div class="correct-answer"> The correct answer is: <span class="option-value">$4$</span> </div>
source_db: MarksBatch2_P4.db
title:
with-a-standard-rectangular-bar-magnet-the-time-period-of-a-vibration-magnetometer-is-4-s-the-bar-magnet-is-cut-parallel-to-its-length-into-four-equal-1

slug:
with-a-standard-rectangular-bar-magnet-the-time-period-of-a-vibration-magnetometer-is-4-s-the-bar-magnet-is-cut-parallel-to-its-length-into-four-equal-1-65023

question:
<div class="question">With a standard rectangular bar magnet the time period of a vibration magnetometer is $4 \mathrm{~s}$. The bar magnet is cut parallel to its length into four equal pieces. The time period of vibration magnetometer when one piece is used (in second) (bar magnet breadth is small) is</div>

options:
<ul class="options"> <li class=""> <span class="option-label">A</span> <span class="option-data">$16$</span> </li><li class=""> <span class="option-label">B</span> <span class="option-data">$8$</span> </li><li class="correct"> <span class="option-label">C</span> <span class="option-data">$4$</span> <svg fill="none" height="24" viewbox="0 0 24 24" width="24" xmlns="http://www.w3.org/2000/svg"> <path d="M12 2.25C10.0716 2.25 8.18657 2.82183 6.58319 3.89317C4.97982 4.96452 3.73013 6.48726 2.99218 8.26884C2.25422 10.0504 2.06114 12.0108 2.43735 13.9021C2.81355 15.7934 3.74215 17.5307 5.10571 18.8943C6.46928 20.2579 8.20656 21.1865 10.0979 21.5627C11.9892 21.9389 13.9496 21.7458 15.7312 21.0078C17.5127 20.2699 19.0355 19.0202 20.1068 17.4168C21.1782 15.8134 21.75 13.9284 21.75 12C21.7473 9.41498 20.7192 6.93661 18.8913 5.10872C17.0634 3.28084 14.585 2.25273 12 2.25ZM16.2806 10.2806L11.0306 15.5306C10.961 15.6004 10.8783 15.6557 10.7872 15.6934C10.6962 15.7312 10.5986 15.7506 10.5 15.7506C10.4014 15.7506 10.3038 15.7312 10.2128 15.6934C10.1218 15.6557 10.039 15.6004 9.96938 15.5306L7.71938 13.2806C7.57865 13.1399 7.49959 12.949 7.49959 12.75C7.49959 12.551 7.57865 12.3601 7.71938 12.2194C7.86011 12.0786 8.05098 11.9996 8.25 11.9996C8.44903 11.9996 8.6399 12.0786 8.78063 12.2194L10.5 13.9397L15.2194 9.21937C15.2891 9.14969 15.3718 9.09442 15.4628 9.0567C15.5539 9.01899 15.6515 8.99958 15.75 8.99958C15.8486 8.99958 15.9461 9.01899 16.0372 9.0567C16.1282 9.09442 16.2109 9.14969 16.2806 9.21937C16.3503 9.28906 16.4056 9.37178 16.4433 9.46283C16.481 9.55387 16.5004 9.65145 16.5004 9.75C16.5004 9.84855 16.481 9.94613 16.4433 10.0372C16.4056 10.1282 16.3503 10.2109 16.2806 10.2806Z" fill="#24A865"></path> </svg> </li><li class=""> <span class="option-label">D</span> <span class="option-data">$2$</span> </li> </ul>

answer:
<div class="solution">Time period of magnet, $T=2 \pi \sqrt{\frac{I}{M B}}$<br/>When magnet is cut parallel to its length into four equal pieces. Then new magnetic moment, $M^{\prime}=\frac{M}{4}$<br/>New moment of inertia, $I^{\prime}=\frac{I}{4}$<br/>$\therefore \quad$ New time period, $T^{\prime}=2 \pi \sqrt{\frac{I^{\prime}}{M^{\prime} B}}$<br/>$\Rightarrow \quad T=T^{\prime}=4 \mathrm{~s}$</div>


tags: ['Physics', 'Magnetic Properties of Matter', 'AP EAMCET', 'AP EAMCET 2008']
correct_option: <div class="correct-answer"> The correct answer is: <span class="option-value">$4$</span> </div>
source_db: MarksBatch2_P4.db
title:
with-a-standard-rectangular-bar-magnet-the-time-period-of-a-vibration-magnetometer-is-4-s-the-bar-magnet-is-cut-parallel-to-its-length-into-four-equal-2

slug:
with-a-standard-rectangular-bar-magnet-the-time-period-of-a-vibration-magnetometer-is-4-s-the-bar-magnet-is-cut-parallel-to-its-length-into-four-equal-2-91748

question:
<div class="question">With a standard rectangular bar magnet the time period of a vibration magnetometer is $4 \mathrm{~s}$. The bar magnet is cut parallel to its length into four equal pieces. The time period of vibration magnetometer when one piece is used (in second) (bar magnet breadth is small) is</div>

options:
<ul class="options"> <li class=""> <span class="option-label">A</span> <span class="option-data">$16$</span> </li><li class=""> <span class="option-label">B</span> <span class="option-data">$8$</span> </li><li class="correct"> <span class="option-label">C</span> <span class="option-data">$4$</span> <svg fill="none" height="24" viewbox="0 0 24 24" width="24" xmlns="http://www.w3.org/2000/svg"> <path d="M12 2.25C10.0716 2.25 8.18657 2.82183 6.58319 3.89317C4.97982 4.96452 3.73013 6.48726 2.99218 8.26884C2.25422 10.0504 2.06114 12.0108 2.43735 13.9021C2.81355 15.7934 3.74215 17.5307 5.10571 18.8943C6.46928 20.2579 8.20656 21.1865 10.0979 21.5627C11.9892 21.9389 13.9496 21.7458 15.7312 21.0078C17.5127 20.2699 19.0355 19.0202 20.1068 17.4168C21.1782 15.8134 21.75 13.9284 21.75 12C21.7473 9.41498 20.7192 6.93661 18.8913 5.10872C17.0634 3.28084 14.585 2.25273 12 2.25ZM16.2806 10.2806L11.0306 15.5306C10.961 15.6004 10.8783 15.6557 10.7872 15.6934C10.6962 15.7312 10.5986 15.7506 10.5 15.7506C10.4014 15.7506 10.3038 15.7312 10.2128 15.6934C10.1218 15.6557 10.039 15.6004 9.96938 15.5306L7.71938 13.2806C7.57865 13.1399 7.49959 12.949 7.49959 12.75C7.49959 12.551 7.57865 12.3601 7.71938 12.2194C7.86011 12.0786 8.05098 11.9996 8.25 11.9996C8.44903 11.9996 8.6399 12.0786 8.78063 12.2194L10.5 13.9397L15.2194 9.21937C15.2891 9.14969 15.3718 9.09442 15.4628 9.0567C15.5539 9.01899 15.6515 8.99958 15.75 8.99958C15.8486 8.99958 15.9461 9.01899 16.0372 9.0567C16.1282 9.09442 16.2109 9.14969 16.2806 9.21937C16.3503 9.28906 16.4056 9.37178 16.4433 9.46283C16.481 9.55387 16.5004 9.65145 16.5004 9.75C16.5004 9.84855 16.481 9.94613 16.4433 10.0372C16.4056 10.1282 16.3503 10.2109 16.2806 10.2806Z" fill="#24A865"></path> </svg> </li><li class=""> <span class="option-label">D</span> <span class="option-data">$2$</span> </li> </ul>

answer:
<div class="solution">Time period of magnet, $T=2 \pi \sqrt{\frac{I}{M B}}$<br/>When magnet is cut parallel to its length into four equal pieces. Then new magnetic moment, $M^{\prime}=\frac{M}{4}$<br/>New moment of inertia, $I^{\prime}=\frac{I}{4}$<br/>$\therefore \quad$ New time period, $T^{\prime}=2 \pi \sqrt{\frac{I^{\prime}}{M^{\prime} B}}$<br/>$\Rightarrow \quad T=T^{\prime}=4 \mathrm{~s}$</div>


tags: ['Physics', 'Magnetic Effects of Current', 'NEET']
source_db: MarksBatch2_P4.db
title:
with-a-standard-rectangular-bar-magnet-the-time-period-of-a-vibration-magnetometer-is-4-s-the-bar-magnet-is-cut-parallel-to-its-length-into-four-equal

slug:
with-a-standard-rectangular-bar-magnet-the-time-period-of-a-vibration-magnetometer-is-4-s-the-bar-magnet-is-cut-parallel-to-its-length-into-four-equal-58259

question:
<div class="question">With a standard rectangular bar magnet, the time period of a vibration magnetometer is <math xmlns="http://www.w3.org/1998/Math/MathML"><mn>4</mn><mo> </mo><mi mathvariant="normal">s</mi></math>. The bar magnet is cut parallel to its length into four equal pieces. The time period of vibration magnetometer when one piece is used (in second) (bar magnet breadth is small) is</div>

options:
<ul class="options"> <li class=""> <span class="option-label">A</span> <span class="option-data"><math xmlns="http://www.w3.org/1998/Math/MathML"><mn>16</mn></math></span> </li><li class=""> <span class="option-label">B</span> <span class="option-data"><math xmlns="http://www.w3.org/1998/Math/MathML"><mn>8</mn></math></span> </li><li class="correct"> <span class="option-label">C</span> <span class="option-data"><math xmlns="http://www.w3.org/1998/Math/MathML"><mn>4</mn></math></span> <svg fill="none" height="24" viewbox="0 0 24 24" width="24" xmlns="http://www.w3.org/2000/svg"> <path d="M12 2.25C10.0716 2.25 8.18657 2.82183 6.58319 3.89317C4.97982 4.96452 3.73013 6.48726 2.99218 8.26884C2.25422 10.0504 2.06114 12.0108 2.43735 13.9021C2.81355 15.7934 3.74215 17.5307 5.10571 18.8943C6.46928 20.2579 8.20656 21.1865 10.0979 21.5627C11.9892 21.9389 13.9496 21.7458 15.7312 21.0078C17.5127 20.2699 19.0355 19.0202 20.1068 17.4168C21.1782 15.8134 21.75 13.9284 21.75 12C21.7473 9.41498 20.7192 6.93661 18.8913 5.10872C17.0634 3.28084 14.585 2.25273 12 2.25ZM16.2806 10.2806L11.0306 15.5306C10.961 15.6004 10.8783 15.6557 10.7872 15.6934C10.6962 15.7312 10.5986 15.7506 10.5 15.7506C10.4014 15.7506 10.3038 15.7312 10.2128 15.6934C10.1218 15.6557 10.039 15.6004 9.96938 15.5306L7.71938 13.2806C7.57865 13.1399 7.49959 12.949 7.49959 12.75C7.49959 12.551 7.57865 12.3601 7.71938 12.2194C7.86011 12.0786 8.05098 11.9996 8.25 11.9996C8.44903 11.9996 8.6399 12.0786 8.78063 12.2194L10.5 13.9397L15.2194 9.21937C15.2891 9.14969 15.3718 9.09442 15.4628 9.0567C15.5539 9.01899 15.6515 8.99958 15.75 8.99958C15.8486 8.99958 15.9461 9.01899 16.0372 9.0567C16.1282 9.09442 16.2109 9.14969 16.2806 9.21937C16.3503 9.28906 16.4056 9.37178 16.4433 9.46283C16.481 9.55387 16.5004 9.65145 16.5004 9.75C16.5004 9.84855 16.481 9.94613 16.4433 10.0372C16.4056 10.1282 16.3503 10.2109 16.2806 10.2806Z" fill="#24A865"></path> </svg> </li><li class=""> <span class="option-label">D</span> <span class="option-data"><math xmlns="http://www.w3.org/1998/Math/MathML"><mn>2</mn></math></span> </li> </ul>

correct_option:
<div class="correct-answer">
The correct answer is:
<span class="option-value"><math xmlns="http://www.w3.org/1998/Math/MathML"><mn>4</mn></math></span> </div>

answer:
<div class="solution"><p>The time period of the magnet, <math xmlns="http://www.w3.org/1998/Math/MathML"><mspace width="0.5em"></mspace><mi>T</mi><mo>=</mo><mn>2</mn><mi>π</mi><msqrt><mfrac><mi mathvariant="italic">I</mi><mtext mathvariant="italic">MB</mtext></mfrac></msqrt></math><br/><br/>When the magnet is cut parallel to its length into four equal pieces.</p><p>Then new Magnetic moment, <math xmlns="http://www.w3.org/1998/Math/MathML"><msup><mi>M</mi><mo>'</mo></msup><mo>=</mo><mfrac><mi>M</mi><mn>4</mn></mfrac></math><br/><br/>New moment of inertia, <math xmlns="http://www.w3.org/1998/Math/MathML"><msup><mi>I</mi><mo>'</mo></msup><mo>=</mo><mfrac><mi>I</mi><mn>4</mn></mfrac></math><br/><br/><math> <mrow> <mo>∴  </mo> </mrow></math>New time period <math xmlns="http://www.w3.org/1998/Math/MathML"><mi>T</mi><mo>=</mo><mn>2</mn><mtext>π</mtext><msqrt><mfrac><mi>I</mi><mtext mathvariant="italic">MB</mtext></mfrac></msqrt></math><br/><br/><math xmlns="http://www.w3.org/1998/Math/MathML"><mo>⇒</mo><mspace width="0.5em"></mspace><mspace width="0.5em"></mspace><mspace mathvariant="italic" width="0.5em"></mspace><mtext mathvariant="italic">T</mtext><mo>=</mo><msup><mtext mathvariant="italic">T</mtext><mo>'</mo></msup><mo>=</mo><mn>4</mn><mo> </mo><mtext>s</mtext></math></p></div>


tags: ['Biology', 'Biodiversity and its Conservation', 'NEET']
source_db: MarksBatch2_P4.db
title:
with-respect-to-insitu-conservation-the-conservation-of-national-genetic-resources-can-be-achieved-by-establishing

slug:
with-respect-to-insitu-conservation-the-conservation-of-national-genetic-resources-can-be-achieved-by-establishing-16689

question:
<div class="question">With respect to <em>In-situ</em> conservation, the conservation of national genetic resources can be achieved by establishing</div>

options:
<ul class="options"> <li class=""> <span class="option-label">A</span> <span class="option-data">National park</span> </li><li class=""> <span class="option-label">B</span> <span class="option-data">Wild life sanctuaries</span> </li><li class=""> <span class="option-label">C</span> <span class="option-data">Biosphere reserve</span> </li><li class="correct"> <span class="option-label">D</span> <span class="option-data">All of the above</span> <svg fill="none" height="24" viewbox="0 0 24 24" width="24" xmlns="http://www.w3.org/2000/svg"> <path d="M12 2.25C10.0716 2.25 8.18657 2.82183 6.58319 3.89317C4.97982 4.96452 3.73013 6.48726 2.99218 8.26884C2.25422 10.0504 2.06114 12.0108 2.43735 13.9021C2.81355 15.7934 3.74215 17.5307 5.10571 18.8943C6.46928 20.2579 8.20656 21.1865 10.0979 21.5627C11.9892 21.9389 13.9496 21.7458 15.7312 21.0078C17.5127 20.2699 19.0355 19.0202 20.1068 17.4168C21.1782 15.8134 21.75 13.9284 21.75 12C21.7473 9.41498 20.7192 6.93661 18.8913 5.10872C17.0634 3.28084 14.585 2.25273 12 2.25ZM16.2806 10.2806L11.0306 15.5306C10.961 15.6004 10.8783 15.6557 10.7872 15.6934C10.6962 15.7312 10.5986 15.7506 10.5 15.7506C10.4014 15.7506 10.3038 15.7312 10.2128 15.6934C10.1218 15.6557 10.039 15.6004 9.96938 15.5306L7.71938 13.2806C7.57865 13.1399 7.49959 12.949 7.49959 12.75C7.49959 12.551 7.57865 12.3601 7.71938 12.2194C7.86011 12.0786 8.05098 11.9996 8.25 11.9996C8.44903 11.9996 8.6399 12.0786 8.78063 12.2194L10.5 13.9397L15.2194 9.21937C15.2891 9.14969 15.3718 9.09442 15.4628 9.0567C15.5539 9.01899 15.6515 8.99958 15.75 8.99958C15.8486 8.99958 15.9461 9.01899 16.0372 9.0567C16.1282 9.09442 16.2109 9.14969 16.2806 9.21937C16.3503 9.28906 16.4056 9.37178 16.4433 9.46283C16.481 9.55387 16.5004 9.65145 16.5004 9.75C16.5004 9.84855 16.481 9.94613 16.4433 10.0372C16.4056 10.1282 16.3503 10.2109 16.2806 10.2806Z" fill="#24A865"></path> </svg> </li> </ul>

answer:
<div class="solution"><em>In-situ</em> conservation is the process of conserving biodiversity, where all living species, mainly the wild and endangered species, are saved in their natural habitat and environment. This includes biosphere reserves, national parks, wildlife sanctuaries, etc.</div>


tags: ['Physics', 'Electromagnetic Induction', 'AIIMS', 'AIIMS 2007']
source_db: MarksBatch2_P4.db
title:
with-the-decrease-of-current-in-the-primary-coil-from-2-amperes-to-zero-value-in-001-mathrms-the-emf-generated-in-the-secondary-coil-is-1000-volts-the

slug:
with-the-decrease-of-current-in-the-primary-coil-from-2-amperes-to-zero-value-in-001-mathrms-the-emf-generated-in-the-secondary-coil-is-1000-volts-the-83172

question:
<div class="question">With the decrease of current in the primary coil from 2 amperes to zero value in \(0.01 \mathrm{~s}\) the emf generated in the secondary coil is 1000 volts. The mutual inductance of the two coils is</div>

options:
<ul class="options"> <li class=""> <span class="option-label">A</span> <span class="option-data">\(1.25 \mathrm{~H}\)</span> </li><li class=""> <span class="option-label">B</span> <span class="option-data">\(2.50 \mathrm{~H}\)</span> </li><li class="correct"> <span class="option-label">C</span> <span class="option-data">\(5.00 \mathrm{~H}\)</span> <svg fill="none" height="24" viewbox="0 0 24 24" width="24" xmlns="http://www.w3.org/2000/svg"> <path d="M12 2.25C10.0716 2.25 8.18657 2.82183 6.58319 3.89317C4.97982 4.96452 3.73013 6.48726 2.99218 8.26884C2.25422 10.0504 2.06114 12.0108 2.43735 13.9021C2.81355 15.7934 3.74215 17.5307 5.10571 18.8943C6.46928 20.2579 8.20656 21.1865 10.0979 21.5627C11.9892 21.9389 13.9496 21.7458 15.7312 21.0078C17.5127 20.2699 19.0355 19.0202 20.1068 17.4168C21.1782 15.8134 21.75 13.9284 21.75 12C21.7473 9.41498 20.7192 6.93661 18.8913 5.10872C17.0634 3.28084 14.585 2.25273 12 2.25ZM16.2806 10.2806L11.0306 15.5306C10.961 15.6004 10.8783 15.6557 10.7872 15.6934C10.6962 15.7312 10.5986 15.7506 10.5 15.7506C10.4014 15.7506 10.3038 15.7312 10.2128 15.6934C10.1218 15.6557 10.039 15.6004 9.96938 15.5306L7.71938 13.2806C7.57865 13.1399 7.49959 12.949 7.49959 12.75C7.49959 12.551 7.57865 12.3601 7.71938 12.2194C7.86011 12.0786 8.05098 11.9996 8.25 11.9996C8.44903 11.9996 8.6399 12.0786 8.78063 12.2194L10.5 13.9397L15.2194 9.21937C15.2891 9.14969 15.3718 9.09442 15.4628 9.0567C15.5539 9.01899 15.6515 8.99958 15.75 8.99958C15.8486 8.99958 15.9461 9.01899 16.0372 9.0567C16.1282 9.09442 16.2109 9.14969 16.2806 9.21937C16.3503 9.28906 16.4056 9.37178 16.4433 9.46283C16.481 9.55387 16.5004 9.65145 16.5004 9.75C16.5004 9.84855 16.481 9.94613 16.4433 10.0372C16.4056 10.1282 16.3503 10.2109 16.2806 10.2806Z" fill="#24A865"></path> </svg> </li><li class=""> <span class="option-label">D</span> <span class="option-data">\(10.00 \mathrm{~H}\)</span> </li> </ul>

correct_option:
<div class="correct-answer">
The correct answer is:
<span class="option-value">\(5.00 \mathrm{~H}\)</span> </div>

answer:
<div class="solution">Induced \(\operatorname{emf} \varepsilon=\frac{-M d I_P}{d t}\)<br/>Where \(M\) is the mutual inductance of two coils and \(\frac{d I_P}{d t}\) is the rate of change of current in the primary.<br/>\(\begin{aligned}<br/>&amp; \therefore \quad 1000 \mathrm{~V}=\frac{-M(0 \mathrm{~A}-2 \mathrm{~A})}{0.01 \mathrm{~s}} \\<br/>&amp; \text { or } M=\frac{(1000 \mathrm{~V})(0.01 \mathrm{~s})}{(2 \mathrm{~A})}=5 \mathrm{H} .<br/>\end{aligned}\)</div>


title: wood-is-separated-from-phloem-in-dicots-by
slug: wood-is-separated-from-phloem-in-dicots-by-76464
question: <div class="question">Wood is separated from phloem in dicots by</div>
tags: ['Biology', 'Anatomy of Flowering Plants', 'NEET']
source_db: MarksBatch2_P4.db
options:
<ul class="options"> <li class=""> <span class="option-label">A</span> <span class="option-data">Pericycle</span> </li><li class=""> <span class="option-label">B</span> <span class="option-data">Cortex</span> </li><li class="correct"> <span class="option-label">C</span> <span class="option-data">Vascular cambium</span> <svg fill="none" height="24" viewbox="0 0 24 24" width="24" xmlns="http://www.w3.org/2000/svg"> <path d="M12 2.25C10.0716 2.25 8.18657 2.82183 6.58319 3.89317C4.97982 4.96452 3.73013 6.48726 2.99218 8.26884C2.25422 10.0504 2.06114 12.0108 2.43735 13.9021C2.81355 15.7934 3.74215 17.5307 5.10571 18.8943C6.46928 20.2579 8.20656 21.1865 10.0979 21.5627C11.9892 21.9389 13.9496 21.7458 15.7312 21.0078C17.5127 20.2699 19.0355 19.0202 20.1068 17.4168C21.1782 15.8134 21.75 13.9284 21.75 12C21.7473 9.41498 20.7192 6.93661 18.8913 5.10872C17.0634 3.28084 14.585 2.25273 12 2.25ZM16.2806 10.2806L11.0306 15.5306C10.961 15.6004 10.8783 15.6557 10.7872 15.6934C10.6962 15.7312 10.5986 15.7506 10.5 15.7506C10.4014 15.7506 10.3038 15.7312 10.2128 15.6934C10.1218 15.6557 10.039 15.6004 9.96938 15.5306L7.71938 13.2806C7.57865 13.1399 7.49959 12.949 7.49959 12.75C7.49959 12.551 7.57865 12.3601 7.71938 12.2194C7.86011 12.0786 8.05098 11.9996 8.25 11.9996C8.44903 11.9996 8.6399 12.0786 8.78063 12.2194L10.5 13.9397L15.2194 9.21937C15.2891 9.14969 15.3718 9.09442 15.4628 9.0567C15.5539 9.01899 15.6515 8.99958 15.75 8.99958C15.8486 8.99958 15.9461 9.01899 16.0372 9.0567C16.1282 9.09442 16.2109 9.14969 16.2806 9.21937C16.3503 9.28906 16.4056 9.37178 16.4433 9.46283C16.481 9.55387 16.5004 9.65145 16.5004 9.75C16.5004 9.84855 16.481 9.94613 16.4433 10.0372C16.4056 10.1282 16.3503 10.2109 16.2806 10.2806Z" fill="#24A865"></path> </svg> </li><li class=""> <span class="option-label">D</span> <span class="option-data">Interfascicular cambium</span> </li> </ul>

correct_option:
<div class="correct-answer">
The correct answer is:
<span class="option-value">Vascular cambium</span> </div>

answer:
<div class="solution">Vascular cambium is present in between xylem and phloem. Vascular cambium divides to form secondary xylem towards inner side and secondary phloem towards outer side during secondary growth. The vascular cambium is the main growth tissue in the stems and roots of many plants, particularly in dicots.</div>


title: wound-healing-is-due-to
slug: wound-healing-is-due-to-45512
question: <div class="question">Wound healing is due to</div>
tags: ['Biology', 'Anatomy of Flowering Plants', 'JIPMER', 'JIPMER 2013']
source_db: MarksBatch2_P4.db
options:
<ul class="options"> <li class="correct"> <span class="option-label">A</span> <span class="option-data">ventral meristem</span> <svg fill="none" height="24" viewbox="0 0 24 24" width="24" xmlns="http://www.w3.org/2000/svg"> <path d="M12 2.25C10.0716 2.25 8.18657 2.82183 6.58319 3.89317C4.97982 4.96452 3.73013 6.48726 2.99218 8.26884C2.25422 10.0504 2.06114 12.0108 2.43735 13.9021C2.81355 15.7934 3.74215 17.5307 5.10571 18.8943C6.46928 20.2579 8.20656 21.1865 10.0979 21.5627C11.9892 21.9389 13.9496 21.7458 15.7312 21.0078C17.5127 20.2699 19.0355 19.0202 20.1068 17.4168C21.1782 15.8134 21.75 13.9284 21.75 12C21.7473 9.41498 20.7192 6.93661 18.8913 5.10872C17.0634 3.28084 14.585 2.25273 12 2.25ZM16.2806 10.2806L11.0306 15.5306C10.961 15.6004 10.8783 15.6557 10.7872 15.6934C10.6962 15.7312 10.5986 15.7506 10.5 15.7506C10.4014 15.7506 10.3038 15.7312 10.2128 15.6934C10.1218 15.6557 10.039 15.6004 9.96938 15.5306L7.71938 13.2806C7.57865 13.1399 7.49959 12.949 7.49959 12.75C7.49959 12.551 7.57865 12.3601 7.71938 12.2194C7.86011 12.0786 8.05098 11.9996 8.25 11.9996C8.44903 11.9996 8.6399 12.0786 8.78063 12.2194L10.5 13.9397L15.2194 9.21937C15.2891 9.14969 15.3718 9.09442 15.4628 9.0567C15.5539 9.01899 15.6515 8.99958 15.75 8.99958C15.8486 8.99958 15.9461 9.01899 16.0372 9.0567C16.1282 9.09442 16.2109 9.14969 16.2806 9.21937C16.3503 9.28906 16.4056 9.37178 16.4433 9.46283C16.481 9.55387 16.5004 9.65145 16.5004 9.75C16.5004 9.84855 16.481 9.94613 16.4433 10.0372C16.4056 10.1282 16.3503 10.2109 16.2806 10.2806Z" fill="#24A865"></path> </svg> </li><li class=""> <span class="option-label">B</span> <span class="option-data">secondary meristem</span> </li><li class=""> <span class="option-label">C</span> <span class="option-data">primary meristem</span> </li><li class=""> <span class="option-label">D</span> <span class="option-data">All of these</span> </li> </ul>

correct_option:
<div class="correct-answer">
The correct answer is:
<span class="option-value">ventral meristem</span> </div>

answer:
<div class="solution">Secondary meristem are the meristem that are formed secondarly from the permanent tissue. Healing of wound in plant take place by the activity of secondary meristem.</div>


tags: ['Biology', 'Structural Organisation in Animals']
options: None
correct_option: None
source_db: MarksBatch2_P4.db
title:
write-down-the-common-features-of-the-connective-tissue-on-the-basis-of-structure-and-function-differentiate-between-bones-and-cartilages

slug:
write-down-the-common-features-of-the-connective-tissue-on-the-basis-of-structure-and-function-differentiate-between-bones-and-cartilages-46051

question:
<div class="question">Write down the common features of the connective tissue. On the basis of structure and function, differentiate between bones and cartilages.</div>

answer:
<div class="solution">Features of connective tissue:<br/>Connective tissues are most abundant and widely distributed in the body of complex animals. They are named connective tissues because of their special function of linking and supporting other tissues/organs of the body. They range from soft connective tissues to specialised types, which include cartilage, bone, adipose, and blood. In all connective tissues except blood, the cells secrete fibres of structural proteins called collagen or elastin. The fibres provide strength, elasticity and flexibility to the tissue. These cells also secrete modified polysaccharides, which accumulate between cells and fibres and act as matrix (ground substance).<br/>Difference between Bone and cartilage:<br/>The intercellular material of cartilage is solid and pliable and resists compression. Cells of this tissue (chondrocytes) are enclosed in small cavities within the matrix secreted by them. Most of the cartilages in vertebrate embryos are replaced by bones in adults. Cartilage is present in the tip of nose, outer ear joints, between adjacent bones of the vertebral column, limbs and hands in adults,<br/>- Bones have a hard and non-pliable ground substance rich in calcium salts and collagen fibres which give bone its strength. It is the main tissue that provides structural frame to the body. Bones support and protect softer tissues and organs. The bone cells (osteocytes) are present in the spaces called lacunae. Limb bones, such as the long bones of the legs, serve weight-bearing functions. They also interact with skeletal muscles attached to them to bring about movements. The bone marrow in some bones is the site of production of blood cells.</div>


tags: ['Mathematics', 'Mathematical Reasoning']
options: None
correct_option: None
source_db: MarksBatch2_P4.db
title:
write-down-the-converse-of-following-statements-i-if-a-rectangle-r-is-square-then-r-is-rhombus-ii-if-today-is-monday-then-tomorrow-is-tuesday-iii-if-y

slug:
write-down-the-converse-of-following-statements-i-if-a-rectangle-r-is-square-then-r-is-rhombus-ii-if-today-is-monday-then-tomorrow-is-tuesday-iii-if-y-49749

question:
<div class="question">Write down the converse of following statements:<br/>(i) If a rectangle ' $R$ ' is square, then $R$ is rhombus.<br/>(ii) If today is Monday, then tomorrow is Tuesday.<br/>(iii) If you go to Agra, then you must visit Taj Mahal.<br/>(iv) If the sum of squares of two sides of a triangle is equal to the square of third side of a triangle, then the triangle is right angled.<br/>(v) If all three angles of a triangle are equal, then the triangle is equilateral.<br/>(vi) If $x: y=3: 2$, then $2 x=3 y$.<br/>(vii) If $S$ is a cyclic quadrilateral, then the opposite angles of $\mathrm{S}$ are supplementary.<br/>(viii) If $x$ is zero, then $x$ is neither positive nor negative.<br/>(ix) If two triangles are similar, then the ratio of their corresponding sides are equal.</div>

answer:
<div class="solution">(i) If the rectangle $R$ is rhombus then it is square.<br/>(ii) If tomorrow is Tuesday then today is Monday.<br/>(iii) If you must visit Taj Mahal you go to Agra.<br/>(iv) If the triangle is right angle then sum of squares of two sides of a triangle is equal to the square of third side.<br/>(v) If the triangle is equilateral then all three angles of the triangle are equal.<br/>(vi) If $2 x=3 y$ then $x: y=3: 2$<br/>(vii) If the opposite angles of $S$ are supplementary then $S$ is a cyclic quadrilateral.<br/>(viii) If $\mathrm{x}$ neither positive nor negative than $\mathrm{x}$ is 0 .<br/>(ix) If the ratio of corresponding sides of two triangles are equal then triangles are similar.</div>


