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Question

A convenient reagent for the conversion of bromobenzene into benzonitrile is :

A
alc.KCN alone
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B
KCN and pyridine
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C
silver cyanide
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D
CuCN and pyridine
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Solution

The correct option is D CuCN and pyridine
A convenient reagent for the conversion of bromobenzene into benzonitrile is CuCN and pyridine. it is an example of nucleophilic aromatic substitution reaction in which -Br atom is replaced with CN group. It requires drastic conditions (high temperature and high pressure).
705790_641911_ans_8a4eed4296e746cfb7074cd749e700be.png

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