Predict the major product in the following reaction:

p-Aminoazobenzene p-Hydroxyazobenzene Sulphanilic acid Phenol

p-Hydroxyazobenzene

The correct answer is option 2. p-Hydroxyazobenzene. Benzene diazonium chloride in reaction with phenol in a basic medium gives p-Hydroxy azobenzene. The mechanism for the reaction of benzene diazonium chloride on reaction with phenol can be given as follows: