Question

Which one of the following will be most basic?

• A. Aniline
• B. p-methoxyaniline
• C. p-methyl aniline
• D. Benzylamine

Hint:

Electron-donating groups increase the basicity of amines by increasing the electron density on the nitrogen.

Answer 1

The Correct Option is B

Step 1: Understand basicity.
The basicity of an amine is determined by the availability of the lone pair on nitrogen for protonation. Substituents that donate electron density (like methoxy) make the amine more basic, while electron-withdrawing groups (like nitro) decrease basicity.
Step 2: Conclusion.
p-Methoxyaniline, with its electron-donating methoxy group, will be the most basic among the options.
Final Answer: \[ \boxed{B} \]