Question:

Assertion (A): Aniline is a stronger base than ammonia.
Reason (R): The unshared electron pair on nitrogen atom in aniline becomes less available for protonation due to resonance.

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In aniline, the lone pair of electrons on nitrogen is involved in resonance with the aromatic ring, reducing its availability for protonation and making it a weaker base than ammonia.
Updated On: Feb 25, 2025
  • Both Assertion (A) and Reason (R) are true and Reason (R) is the correct explanation of the Assertion (A).
  • Both Assertion (A) and Reason (R) are true, but Reason (R) is not the correct explanation of the Assertion (A).
  • Assertion (A) is true, but Reason (R) is false
  • Assertion (A) is false, but Reason (R) is true.
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The Correct Option is D

Solution and Explanation

Aniline is actually a weaker base than ammonia because the lone pair of electrons on the nitrogen in aniline is delocalized into the benzene ring, making it less available for protonation. The reasoning is true, but the assertion is false.
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