Question

When nitrobenzene is treated with Br2 in the presence of FeBr3, m-bromo nitrobenzene is formed as a major product. The statement(s) related to this m-isomer is/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 metal position is least destabilised
• (C) oss of aromaticity, when Br⁺ attacks at the ortho and para positions and not at meta position
• (D) easier loss of H⁺ to regain aromaticity forms the meta position than from the ortho and para positions

Answer 1

The Correct Option is B, C

Explanation:
The electron density on meta carbon is more than ortho and para positions as -NO2 is deactivating group. The intermediate carbonium ion formed after initial attack of Br⁺ at the meta position is least destabilised due to no mesomeric effect.