Question

with the help of resonating structure explain the effect of presence of nitro group at ortho position in chlorobenzene​

Answer 1

Answer:

In nitrobenzene, the nitro group (−NO

2

​

) is attached to the benzene ring. −NO

2

​

 group is an electron withdrawing group. It deactivates benzene ring towards electrophilic substitution reaction.

The resonating structure of nitrobenzene shows +ve charge develops in ortho and para positions.

As a result, the electron density at meta position is relatively higher than at the ortho and para position.

It decreases the electron density at ortho and para position thus making the electron density at meta position more than at ortho and para position.

Explanation:

Answer 2

Answer:

basically nitro group is an electron withdrawing group due to this it decreases electron density at ortho and para position specially . As a result it deactivates benzene ring towards electrophilic substitution reaction. Therefore it reduces electrophilic attack on benzene ring.

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