STANDARD Chemistry Basicity of Amines MCQ Question
Which of the following orders is true regarding the basic nature of NH₂ group?
o-Toluidine > Aniline > o-Nitroaniline
o-Toluidine < Aniline > o-Nitroaniline
o-Toluidine < Aniline < o-Nitroaniline
o-Toluidine > Aniline < o-Nitroaniline
Correct Answer
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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