STANDARDChemistry-Amines
STANDARD Chemistry Basicity of Amines MCQ Question
Type: MCQ-conceptual-Medium-Class 12
Which of the following orders is true regarding the basic nature of NH₂ group?

A
o-Toluidine > Aniline > o-Nitroaniline
B
o-Toluidine < Aniline > o-Nitroaniline
C
o-Toluidine < Aniline < o-Nitroaniline
D
o-Toluidine > Aniline < o-Nitroaniline
Correct Answer
Option B
Detailed Explanation
Ortho-substituted anilines are weaker bases than anilines regardless of the nature of the substituent whether electron releasing or electron withdrawing. This is called ortho effect and is probably due to a combination of steric and electronic factors.
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