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13) How do you prepare aldehydes from alkane nitrile? Write the general reaction and name of the reaction., 2, , Stephen reaction, , 14) What happens when toluene treated with chromyl chloride in CS2 solvent upon hydrolysis? Write, chemical equation., Benzaldehyde is obtained, , 2, , 15) Write the general reaction to prepare ketones from acyl chloride., , 2, , 16) Name the functional group obtained when benzene reacts with acetyl chloride in presence of anhydrous, AlCl3, 2, Functional group is Ketone, , 17) Explain the mechanism of addition of HCN to aldehyde ., 3, Aldehydes and ketones reacts very slowly with pure HCN. Hences,it is catalysed by base and generated, cyanide adds to carbonyl compound to yield corresponding cyanohydrins., , 18) How do aldehydes and ketones react with ammonia/ hydroxylamine/ hydrazine/ phenyl hydrazine, /semicarbazide?, (Each one carries 2 marks.), , 19) Identify the following reaction., , 1, , Page 2
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Clemmensons reduction, 20) Name the products obtained when aldehydes are oxidized., 1, Carboxylic acid, 21) Write Wolff-Kishner reduction equation., , 2, , 22) What is Tollen’s reagent., Tollen’s reagent is ammonical silver nitrate solution., , 1, , 23) What is Fehling’s solution., 1, Fehling’s solution is a mixture of alkaline copper sulphate solution and soium-potasium tartarate solution., 24) How do aldehydes and ketones react with sodium bisulphite?, , 2, , 25) Why are α- hydrogen of aldehyde are acidic in nature?, 2, , 26) What is Aldol condensation reaction and explain this reaction by taking ethanol as example., 3, , Page 3
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27) How is propanone converted into 4-methylpent-3-en-2-one?, , 2, , 28) Explain the reaction between benzaldehyde and acetophenone in presence of dilute base and identify, the name of the reaction., 3, C6H5CHO, + C6H5COCH3, C6H5CH=CH-CO-C6H5, Benzaldehyde acetophenone, 1,3-diphenylprop-2-en-1-one., This reaction is called as cross-aldol condensation reaction., 29) Write the reaction involved when two molecules of methanal reacted each other in presence of, concentrated base. Name the reaction., 3, , Cannizzaro’s reaction, 30) How is toluene/ propyl benzene converted into benzoic acid?, , 2, , Toluene, , benzoic acid., , Page 4
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31) How are carboxylic acids obtained from alkyl nitrile? Give example., , 2, , 32) How do you prepare carboxylic acid obtained from Grignard reagent?, , 2, , 33) How is benzoic acid obtained from ethyl benzoate?, 2, , 34) Identify the product in the following reaction., 1, , 35) Mention any two uses of acetic acid, 2, , 36) Identify the product in the following reaction., , 1, , m-Nitrobenzaldehyde, 37) What is formalin? Mention its uses., , 2, , 40 % aqueous solution of formaldehyde is called as formalin.It is used for preservation of biological specimen, Page 5
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38) How are carboxylic acids obtained from alcohols?, , 2, , 39) What happenes when carboxylic acid reacts with PCL5/PCl3/SOCl2., , 2, , 40) How do acetic acid react with ammonia., , 2, , 41) Write the equation involving the reaction between benzoic acid and ammonia., , 42) How do you convert benzene-1,2-dicarboxylic acid into phthalimide., , 2, , 3, , 43) Name the product obtained when sodium acetate treated with sodalime., Methane, 44) Write the general reaction of Hell-Volhard-Zelinsky reaction., , 45) Explain nitration reaction of benzoic acid., , 46) Write the name of the following reaction., , 1, 2, , 2, , 1, , Page 6
