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Identify the catalyst in the nucleophilic addition of HCN to acetone.

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in Chemistry – Class 12 by (188k points)
Identify the catalyst in the nucleophilic addition of HCN to acetone.

(a) NaOH

(b) HCl

(c) NaCl

(d) NaCN

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My question is from Aldehydes and Ketones Chemical Reactions topic in division Aldehydes, Ketones and Carboxylic Acids of Chemistry – Class 12

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Correct option is (a) NaOH

Explanation: Acetone reacts with HCN to give a cyanohydrin of acetone. But this reaction proceeds very slowly with pure HCN. So, the reaction is carried out in a basic medium which removes the proton from HCN and produces CN^– ion which is a stronger nucleophile and makes the reaction faster.

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