The correct statement regarding the basicity of arylamines is :

Question

1. Arylamines are generally less basic than alkylamines because the nitrogen lone-pair electrons are delocalized by interaction with the aromatic ring π electron system. 2. Arylamines are generally more basic than alkylamines because the nitrogen lone-pair electrons are not delocalized by interaction with the aromatic ring π electron system. 3. Arylamines are generally more basic than alkylamines because of aryl group. 4. Arylamines are generally more basic than alkylamines, because the nitrogen atom in arylamines is sp-hybridized.

Doubtly AI · Accepted Answer

Answer: 1. Arylamines are generally less basic than alkylamines because the nitrogen lone-pair electrons are delocalized by interaction with the aromatic ring π electron system. Key idea: in arylamines the nitrogen lone pair is delocalised into the benzene ring by resonance, so it is less available to accept a proton. Alkylamines have no such delocalisation (and the alkyl groups push electrons towards N), so they are more basic. Hence arylamines are less basic than alkylamines, option 1. The nitrogen is not sp-hybridised, so option 4 is wrong too.

The correct statement regarding the basicity of arylamines is :

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