MHT CET 2023 Chemistry question

Which of the following is NOT prepared by the action of Grignards reagent on methanal?

(A)Ethanol
(B)Propan-1-ol
(C)Propan-2-olCorrect
(D)Butan-1-ol

Answer: (C)

Solution

Grignard reagent adds to methanal (HCHO) and hydrolysis of the adduct gives a PRIMARY alcohol: \mathrm{RMgX + HCHO \rightarrow RCH_2OMgX \xrightarrow{H_3O^+} RCH_2OH}. With the product is ethanol (a), with it

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Question ID VK-097866