MHT CET 2026 Chemistry question

Chemistry Haloalkanes and Haloarenes MHT CET 2026

Benzonitrile on reaction with a reagent in dry ether followed by hydrolysis forms benzophenone along with ammonia and hydroxymagnesium bromide. Identify the reagent used in above transformation.

(A)
(B)
(C)
(D)Correct

Answer: (D)

Solution

A Grignard reagent adds to the bond of a nitrile to give an imine salt, which on hydrolysis yields a ketone: \mathrm{C_6H_5CN + R MgX \rightarrow C_6H_5-C(=NMgX)-R \xrightarrow{H_2O} C_6H_5-CO-R + NH_3 + Mg(OH)X}. For benzophenone, , the group R must be phenyl, so the

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Question ID VK-100417