Question

Reaction of Benzene diazonium chloride with phenol in basic medium gives

• A. Diphenyl ether
• B. \( p \)-hydroxy azobenzene
• C. Chlorobenzene
• D. Benzene

Hint:

Azo coupling is an electrophilic substitution reaction between diazonium salts and phenols.

Answer 1

The Correct Option is B

Step 1: Benzene diazonium chloride reacts with phenol in basic medium to form p-hydroxy azobenzene, an example of azo coupling. 

Step 2: The reaction is: \[ C_6H_5N_2Cl + C_6H_5OH \xrightarrow{NaOH} C_6H_5N=N-C_6H_4OH \]