MHT CET 2026 Chemistry question

Identify the product obtained when isopropyl magnesium chloride in dry ether reacts with dry ice forming a complex, hydrolysed further.

(A)Propanoic acid
(B)Propanal
(C)2 - Methylpropanoic acidCorrect
(D)2 - Methylpropanol

Answer: (C)

Solution

Grignard reagents add to (dry ice) at the electrophilic carbon to give a magnesium carboxylate complex, which on acid hydrolysis gives a carboxylic acid with one more carbon: (CH_3)_2CH(CH_3)_2CHCOO^-MgCl^+\xrightarrow{H_3O^+}$

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Question ID VK-100276