CO_2 on reaction with C_2H_5MgBr and H_2O gives:

JEE Main Chemistry question

on reaction with and gives:

(A)Ethane
(B)Propionic acidCorrect
(C)Acetic acid
(D)None of these

Answer: (B)

Solution

A Grignard reagent adds to the electrophilic carbon of carbon dioxide to give a magnesium carboxylate, which is hydrolysed on aqueous workup to the carboxylic acid: $ + →

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Question ID VK-148156