Question

Which of the following is a true statement regarding the effect of substituent on the basic character of aromatic amines?

• A. Electron donating groups like $-OC{H}_3$, $-C{H}_3$ increases the basic strength, while electron withdrawing groups like $-N{O}_2$, $-S{O}_3$, $-COOH$ etc. decrease the basic strength.
• B. Electron donating groups like $-OC{H}_3$, $-C{H}_3$ decreases the basic strength, while electron withdrawing groups like $-N{O}_2$, $-S{O}_3$, $-COOH$ etc. increase the basic strength.
• C. Electron donating groups like $-OC{H}_3$, $-CN$ increases the basic strength, while electron withdrawing groups like $-N{O}_2$, $-S{O}_3$, $-COOH$ etc. decrease the basic strength.
• D. Electron donating groups like $-OC{H}_3$, $-C{H}_3$ increases the basic strength, while electron withdrawing groups like $-N{O}_2$, $-S{O}_3$, $-COOH$, $-N{H}_2$ etc. decrease the basic strength.

Answer 1

The correct option is A Electron donating groups like $-OC{H}_3$, $-C{H}_3$ increases the basic strength, while electron withdrawing groups like $-N{O}_2$, $-S{O}_3$, $-COOH$ etc. decrease the basic strength.

Electron donating groups like $-OC{H}_3$, $-C{H}_3$, $-N{H}_3$ increases the basic strength, while electron withdrawing groups like $-N{O}_2$, $-S{O}_3$, $-COOH$, $-CN$ etc. decrease the basic strength.
The electron donating groups stabilize the cation and electron withdrawing groups destabilize the cation.