Reaction of a carbonyl compound with one of the following reagents involves nucleophilic addition followed by elimination of water.The reagents is

Options

(a) hydrazine in presence of feebly acidic solution
(b) hydrocyanic acid
(c) sodium hydrogen sulphite
(d) a Grignard reagent

Correct Answer:

hydrazine in presence of feebly acidic solution

Explanation:

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