Question

If meta-nitroaniline is chlorinated, the major product is:

• A.
• B.
• C.
• D.

Answer 1

Answer: (A)

$-N{H}_2$ group increases $e^{-}$ density at $0-\&p$ - positions $\&-N{O}_2$ position.

$\because$ Chlorination is electrophilic substitution reaction, position of attack in directed by $-N{H}_2$ group. So, $Cl$ will be attached to $o-$ or $p-$ position of $-N{H}_2$ group.

In option $(a)\&(c)-I$ effect of $-N{O}_2$ group is more pronounced at $o-$ position wrt $-N{O}_2$ group than at pposition which decreases $e^{-}$ density.

$\therefore (a)$ is correct.