Identify the product 'B' in the following sequence of reactions CH_3Br KCN A Na/C_2H_5OH B

MHT CET 2023 Chemistry question

Identify the product 'B' in the following sequence of reactions

(A)Methyl cyanide
(B)EthylamineCorrect
(C)Methylamine
(D)Ethyl cyanide

Answer: (B)

Solution

Step 1: CH_3Br+KCN\rightarrow CH_3CN+KBr, so A is methyl cyanide (acetonitrile); KCN is ionic and attacks through carbon giving the alkyl cyanide. Step 2: nitriles are reduced by nascent hydrogen (Na/CHOH, a mild reducing agent) to

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Question ID VK-098310