Question

15. Assertion: Carboxylic acids are more acidic than phenols.
Reason: Phenols are ortho and para directing,​

Answer 1

Answer:

Both Assertion and Reason are correct, Reason is the correct explaination for Assertion

Explanation:

When a molecule of phenol loses a proton, it forms phenoxide ion which is stabilized by resonance as the negative charge is delocalized over aromatic nucleus.No such resonance is present when an alcohol loses a proton to form alkoxide ion. Hence, phenols are more acidic than alcohols.

Answer 2

Both Assertion and Reason are correct, Reason is the correct explaination for Assertion

Concepts:

• Phenol molecule loses a proton ⇒ produces phenoxide ion [which is stabilized by resonance.]

• Alcohol loses a proton ⇒ forms alkoxide ion [no resonance happens]
• Thus, PHENOLS are highly acidic than ALCOHOLS.