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Question

Methyl cyanide on treatment with magnesium bromide followed by subsequent hydrolysis gives :

A
Propanae
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B
Ethanone
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C
Ethanal
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D
Propanal
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Solution

The correct option is A Propanae
Treating a nitrile with Grignard reagent followed by hydrolysis yields a ketone. The reaction proceeds via an imine salt intermediate that is then hydrolysed to give the ketone product.
Methyl magnesium bromide is the grignard reagent here



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