JEE Main Chemistry question

Grignard reagent with hydrogen cyanide gives:

(A)AldehydeCorrect
(B)Ketone
(C)Both (A) and (B)
(D)None of these

Answer: (A)

Solution

A Grignard reagent adds across the carbon–nitrogen triple bond of hydrogen cyanide in the same way that it adds to a substituted nitrile, giving a magnesium imine salt: . Aqueous acidic hydrolysis of this imine salt then liberates the corresponding aldehyde,

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Question ID VK-148352