Question

: $p$-chlorobenzoic acid is stronger acid than benzoic acid. : Chlorine has electron donating resonance $(+ R )$ effect.

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

Answer 1

Answer: (B)

Both Assertion and Reason are true but Reason is not the correct explanation of Assertion.

Answer 2

Chlorine has electron donating resonance effect however its inductive effect $(-I)$ wins over resonance effect and makes it overall electron withdrawing due to which increases the acid strength of benzoic acid.