The reaction between a carboxylic acid and an alcohol in the presence of concentrated sulphuric acid is called
Correct answer: B. esterification
- A. saponification
- B. esterification
- C. hydrolysis
- D. decarboxylation
Explanation
Esterification joins the two molecules with the elimination of water and is reversible, so the sulphuric acid serves both as catalyst and as a dehydrating agent that pulls the equilibrium towards the ester. Saponification is the reverse process carried out with alkali, which produces a soap from a fat. Decarboxylation removes carbon dioxide and shortens the chain.
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About Carboxylic Acid Derivatives
Carboxylic acid derivatives include acid halides, acid anhydrides, esters and amides, formed by replacing the hydroxyl group of a carboxylic acid. Their nomenclature, structures, preparation, hydrolysis and relative reactivity are linked through nucleophilic acyl substitution, which differs from the nucleophilic addition reactions of aldehydes and ketones.
Practise Carboxylic Acids
550 free Carboxylic Acids MCQs from Chemistry, each with the correct answer and an explanation. Unlimited attempts, no account needed.
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