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Ans.1) Esterification reaction is a chemical reaction in which an alcohol and a carboxylic acid react together in the presence of an acid catalyst to form an ester.
CH3CH2OH + CH3COOH CH3COOCH2CH3 + H2O
Ethanol Ethanoic acid Ethyl ethanoate Water
Ester
Concentrated sulfuric acid is used as the acid catalyst in this reaction.