Question

When Nitrobenzene is treated with Br2 in presence of FeBr3, the major product formed is m-bromonitro benzene. Statements wich 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 orth and para positions not at meta position
• D. Easier loss of H+ to regain aromaticity from the meta position than from ortho and para positions.

Answer 1

Answer: (B)

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

Answer 2

The intermediate carbonium ion formed after initial attack of Br+ at the meta position is least destablilized.