Cl• + O3 ClO• + O2 and ClO• + O3 → → 2O2 + Cl• One hour lessons Learning Outcomes Specification Content Skills Covered Student Required Book Section Practicals CHAPTER 14 Alkenes (7 – 1 Alkenes 3.3.4.1 Structure, bonding and 14.1 Describe the essential features of reactivity Recap the main features alkenes as a homologous series Alkenes are unsaturated of alkenes, including Recall the types of isomers present in their ability to form hydrocarbons. alkenes geometric and Explain the nature of the bonding in Bonding in alkenes involves a double stereoisomers. Explain alkenes including pi and sigma bonds covalent bond, a centre of high the differences between electron density. sigma and pi bonds. 2 Electrophilic addition 14.2 3.3.4.2 Addition reactions of alkenes reaction of alkenes Electrophilic addition reactions of name the features of an electrophile alkenes with HBr, H2SO4 and Br2. Introduce the term and give some examples electrophile. Using explain why alkenes are susceptible to The use of bromine to test for displayer formulae, attack by electrophiles unsaturation. explore the electrophilic describe the mechanisms of the The formation of and minor addition reactions of electrophilic addition reactions of products in addition reactions of different electrophiles alkenes with HBr, H2SO4 and Br2 using with alkenes. curly arrows unsymmetrical alkenes. Students should be able to: outline the 3 Hydration of alkenes 14.2 mechanisms for reactions; explain Carry out a practical to the formation of major and minor investigate the Use equipment safely and follow a products by reference to the relative electrophilic addition procedure reaction between Describe the procedure to produce from hex-1 ene
Cl• + O3 → ClO• + O2 and ClO• + O3 → 2O2 + Cl• One hour lessons Learning Outcomes Specification Content Skills Covered Student Book Section Required Practicals CHAPTER 14 – Alkenes (7 1 Alkenes Recap the main features of alkenes, including their ability to form geometric and stereoisomers. Explain the differences between sigma and pi bonds. Describe the essential features of alkenes as a homologous series Recall the types of isomers present in alkenes Explain the nature of the bonding in alkenes including pi and sigma bonds 3.3.4.1 Structure, bonding and reactivity Alkenes are unsaturated hydrocarbons. Bonding in alkenes involves a double covalent bond, a centre of high electron density. 14.1 2 Electrophilic addition reaction of alkenes Introduce the term electrophile. Using displayer formulae, explore the electrophilic addition reactions of different electrophiles with alkenes. name the features of an electrophile and give some examples explain why alkenes are susceptible to attack by electrophiles describe the mechanisms of the electrophilic addition reactions of alkenes with HBr, H2SO4 and Br2 using curly arrows 3.3.4.2 Addition reactions of alkenes Electrophilic addition reactions of alkenes with HBr, H2SO4 and Br2. The use of bromine to test for unsaturation. The formation of and minor products in addition reactions of unsymmetrical alkenes. Students should be able to: outline the mechanisms for reactions; explain the formation of major and minor products by reference to the relative 14.2 3 Hydration of alkenes Carry out a practical to investigate the electrophilic addition reaction between Use equipment safely and follow a procedure Describe the procedure to produce from hex-1 ene 14.2
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