Question
Question: Which of the following is used to replace halogen atom from chlorobenzene by CN?...
Which of the following is used to replace halogen atom from chlorobenzene by CN?
A
HCN
B
AgCN
C
CuCN
D
CH3CN
Answer
CuCN
Explanation
Solution
The transformation of chlorobenzene to benzonitrile is achieved via the Rosenmund von Braun reaction, where the reagent used is CuCN.