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NTA Abhyas JEE Main2020ChemistryGeneral Organic ChemistryPractice

Which is the strongest base among the following

Options

  1. AC 6 H 5 N H 2
  2. Bp - N O 2 C 6 H 4 N H 2
  3. Cm - N O 2 C 6 H 4 N H 2
  4. DC 6 H 5 C H 2 N H 2

Correct answer

D. C 6 H 5 C H 2 N H 2

Step-by-step solution

Lone pair is not taking part in resonance, most basic. In other cases, lone pair of nitrogen is part of delocalisation which decreases Lewis base strength.

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