question_answer

Rate of substitution reaction in phenol is              [MP PMT 1989]

A)                 Slower than the rate of benzene

B)                 Faster than the rate of benzene

C)                 Equal to the rate of benzene

D)                 None of these

Correct Answer: B

Solution :

  Rate of electrophillic substitution reaction in phenol is faster than in benzene because presence of \[-\,OH\] group increases electron density at o- and p- positions.