MHT CET 2026 Chemistry question

Identify the product obtained when Grignard reagent reacts with alkyl cyanide followed by acid hydrolysis

(A)an aldehyde
(B)a ketoneCorrect
(C)a primary alcohol
(D)a secondary alcohol

Answer: (B)

Solution

A Grignard reagent adds to the polar bond of an alkyl cyanide to form an imine salt (iminomagnesium complex): . Acid hydrolysis then converts this to a ketone: R'-C(=NMgX)-R + H_2O \xrightarrow{H^+} R'-CO-R + NH_3 + Mg(OH)X. Option (B) is

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Question ID VK-096245