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Chemistry-Properties of Phenols

NEET Chemistry Properties of Phenols Assertion Reason Question

Type: Assertion Reason-assertion-Hard-Class 12

Assertion (A): The carbon–oxygen bond in phenol is shorter than that in methanol.

Reason (R): The phenolic C–O bond has partial double bond character due to conjugation with the aromatic ring.

A

Both A and R are true and R is the correct explanation of A.

B

Both A and R are true but R is not the correct explanation of A.

C

A is true but R is false.

D

A is false.

Correct Answer

Option A

Detailed Explanation

The NCERT context states that the carbon–oxygen bond in phenol is shorter than in methanol due to partial double bond character from conjugation of the oxygen's unshared pair with the aromatic ring.

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