question_answer

Nitro group in nitrobenzene is a                [MNR 1986]

A)                 Ortho director  

B)                 Meta director

C)                 Para director     

D)                 Ortho and para director

Correct Answer: B

Solution :

Presence of \[-N{{O}_{2}}\] group decreases electron density at o- and p- positions. Hence, incoming electrophile goes to m position. Therefore it is m-directing group.