question_answer 45)

  Which of the following compound will not undergo azo coupling reaction with benzene diazonium chloride. (a) Aniline           (b) Phenol                           (c) Anisole                           (a) Nitrobenzene

Answer:

                  (d) Diazonium cation is a weak electrophile and hence reacts with electron rich compounds containing electron donating groups such as  and groups and not will compounds containing electron withdrawing groups such as  etc.