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.

• A. Both Assertion (A) and Reason (R) are true and Reason (R) is the correct explanation of the Assertion (A).
• B. Both Assertion (A) and Reason (R) are true, but Reason (R) is not the correct explanation of the Assertion (A).
• C. Assertion (A) is true, but Reason (R) is false
• D. Assertion (A) is false, but Reason (R) is true.

Hint:

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.

Answer 1

The Correct Option is D

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.