Question

When nitrobenzene is treated with Br₂ in presence of FeBr₃, the major product formed is m-bromonitrobenzene. Statements which are related to obtain m-isomer are: 

(A) The electron-density on meta carbon is more than that on ortho and para positions 

(B) The intermediate carbonium ion formed after initial attack of Br+ at the meta position is least destabilized. 

(C) Loss of aromaticity, when Br⁺attacks at the ortho and para positions, and not at meta position. 

(D) Easier loss of H⁺ to regain aromaticity from the meta position than from the ortho and para positions.

Answer 1

Correct Option  (A, B)

Explanation:

The electron density on meta carbon is more than that on ortho and para positions. The intermediate carbonium ion formed after initial attack of Br⁺ at the meta position is least destabilized due to no mesomeric effect.