PYQ NEET- Organic Compounds Containing Nitrogen L-3

Question: Which of the following is more basic than aniline?#

A) Benzylamine

B) Diphenylamine

C) Triphenylamine

D) $p$-Nitroaniline

Answer: Benzylamine#

Sol:#

Any group which when present on benzene ring has electron withdrawing $\left(-\mathrm{NO}_2,-\mathrm{CN},-\mathrm{SO}_3 \mathrm{H}\right.$, $-\mathrm{COOH},-\mathrm{Cl},-\mathrm{C}_6 \mathrm{H}_5$, etc.) group decreases basicity of aniline. e.g. Aniline is more basic than nitroaniline and diphenyl amine. While a group which has electron repelling effect $\left(-\mathrm{NH}_2,-\mathrm{O} R,-R\right.$, etc.) increases basicity of aniline.