What is the product obtained in the reaction CH_3-CH=CH-CH_2-CHO [ii) H_3O^+] i) LiAlH_4 product

MHT CET 2024 Chemistry question

What is the product obtained in the reaction CH_3-CH=CH-CH_2-CHO \xrightarrow[ii)\ H_3O^+]{i)\ LiAlH_4} product

(A)CH_3-CH=CH-CH_2-CH_2-OHCorrect
(B)CH_3-CH=CH-CH_2-COOH
(C)CH_3-CH_2-CH_2-CH_2-CHO
(D)CH_3-CH_2-CH_2-CH_2-CH_3

Answer: (A)

Solution

is a nucleophilic hydride donor that reduces the polar group of an aldehyde to a primary alcohol; it does not reduce an isolated, non-conjugated double bond (the double bond here is separated from CHO by a group). Hence ${=}

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Question ID VK-095048