CROSSWORD 1. Self linking property of carbon 4. Acid having functional group –COOH 6 .Hydrogenation of vegetable oil is ---- reaction 8. Simplest hydrocarbon 9 IUPAC name of next higher homologous of ethanol 10. The substance used in making perfumes and flavoring agents DOWN 2. Hydrocarbon burns in air with sooty flame. 3. The functional group present in methanol. 5. Chlorination of alkanes is -------- reaction 7. The active ingredient of all alcoholic drinks. Question Bank Answer the following questions. Very short answer questions (1 mark) 1. Which of the following formulae represents a saturated hydrocarbon? CnH2n, CnH2n-2, CnH2n+2, CnH2n+1 2. Draw the electron dot structure of Ethene . Short answer question (2mark) 1. Why is the conversion of ethanol to ethanoic acid an oxidation reaction? 2. What is meant by denatured alcohol? What is the need to denature alcohol? Short answer question (3 mark) 1. An organic compound A of molecular formula C2H6O on heating with excess of conc.H2SO4 gives compound B of molecular formula C2H4 .Compound B on reduction gives compound C of molecular formula C2H6. a) Name A, B and C. b) Write the chemical equation for the conversion of A to B c) What is the role of conc.H2SO4 in above equation? (HOTS) VALUE BASED QUESTION Meera and her mother were travelling in a CNG auto. The auto driver took the auto to the CNG filling station for filling the empty cylinder. Meera asked her mother about the gas used to fill the cylinder. Her mother replied that the gas used was CNG.CNG is used in place of petrol or diesel because it is cheaper, pollution free and eco-friendly.
CROSSWORD 1. Self linking property of carbon 4. Acid having functional group –COOH 6 .Hydrogenation of vegetable oil is ---- reaction 8. Simplest hydrocarbon 9 IUPAC name of next higher homologous of ethanol 10. The substance used in making perfumes and flavoring agents DOWN 2. Hydrocarbon burns in air with sooty flame. 3. The functional group present in methanol. 5. Chlorination of alkanes is -------- reaction 7. The active ingredient of all alcoholic drinks. Question Bank Answer the following questions. Very short answer questions (1 mark) 1. Which of the following formulae represents a saturated hydrocarbon? CnH2n, CnH2n-2, CnH2n+2, CnH2n+1 2. Draw the electron dot structure of Ethene . Short answer question (2mark) 1. Why is the conversion of ethanol to ethanoic acid an oxidation reaction? 2. What is meant by denatured alcohol? What is the need to denature alcohol? Short answer question (3 mark) 1. An organic compound A of molecular formula C2H6O on heating with excess of conc.H2SO4 gives compound B of molecular formula C2H4 .Compound B on reduction gives compound C of molecular formula C2H6. a) Name A, B and C. b) Write the chemical equation for the conversion of A to B c) What is the role of conc.H2SO4 in above equation? (HOTS) VALUE BASED QUESTION Meera and her mother were travelling in a CNG auto. The auto driver took the auto to the CNG filling station for filling the empty cylinder. Meera asked her mother about the gas used to fill the cylinder. Her mother replied that the gas used was CNG.CNG is used in place of petrol or diesel because it is cheaper, pollution free and eco-friendly.