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Question: Answered & Verified by Expert
The correct statement regarding the basicity of aryl amines is:
ChemistryGeneral Organic ChemistryNEETNEET 2016 (Phase 1)
Options:
  • A Aryl amines are generally less basic than alkyl amines because the nitrogen lone-pair electrons are delocalized by interaction with the aromatic ring π electron system.
  • B Aryl amines are generally more basic than alkyl amines because the nitrogen lone-pair electrons are not delocalized by interaction with the aromatic ring π electron system.
  • C Aryl amines are generally more basic than alkyl amines because of aryl group.
  • D Aryl amines are generally more basic than alkyl amines, because the nitrogen atom in aryl amines is sp-hybridized.
Solution:
2820 Upvotes Verified Answer
The correct answer is: Aryl amines are generally less basic than alkyl amines because the nitrogen lone-pair electrons are delocalized by interaction with the aromatic ring π electron system.



In Aryl amines lone pair is in conjugation with double bond so basic strength decreased

While in aliphatic amine ( R−N H 2 ) no delocalisation of lone pair and +I effect of − CH 3 group so they have more basic strength.

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