Discussion Forum



1)

In case of substituted aniline, the group which decreases the basic strength is 


A) $-OCH_{3}$

B) $-CH_{3}$

C) $-NH_{2}$

D) $-C_{6}H_{5}$

Answer:

Option D

Explanation:

Electron releasing groups like -NH2 ,-OCH3,-CH3 increase electron density at N-atom hence, such substituents increase  basic nature of aromatic amines.

 Electron -withdrawing groups like,

-NO2, -SO3 H, -COOH, -X, -C6H5) 

decrease electron density at N-atom thus, decreasing the basic nature of aromatic amines.