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

alc.

K C N

alone

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K C N

and pyridine

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silver cyanide

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C u C N

and pyridine

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Solution

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

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Similar questions

Formation of two isomeric cyanides in the following reaction. $C H_{3} C H = C H C H_{2} C l + K C N (a l c .)$ is due to

C_{2} H_{5} O H S O C l_{2} - ---- \to Pyridine A K C N (a l c .) - ----- \to B 2 H_{2} O / H^{+} - ----- \to C

C_{2} H_{5} O H S O C l_{2} - ---- \to Pyridine A (alc.) K C N - ------ \to B 2 H_{2} O / H^{+} - ----- \to Heat C

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