JEE Main Chemistry question

Benzaldehyde on refluxing with aqueous alcoholic KCN produces

(A)Cyanobenzene
(B)Cyanohydrin
(C)Benzoyl cyanide
(D)BenzoinCorrect

Answer: (D)

Solution

Under KCN/alcohol–water catalysis (benzoin condensation), cyanide ion acts as a nucleophilic catalyst: it adds to one benzaldehyde to form a cyanohydrin, whose

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Question ID VK-149137