NEET2019Chemistry-Organic Chemistry

NEET 2019 Chemistry Acidity and basicity MCQ Question

Type: MCQ-conceptual-Hard-Class 12

The compound that is most difficult to protonate is ______.

A

H₃C−O−H

B

H₃C−O−CH₃

C

Ph−O−H

D

H−O−H

Correct Answer

Option C

Detailed Explanation

Phenol (Ph−O−H) is difficult to protonate due to the resonance stabilization of the phenoxide ion, making it less reactive towards protonation.

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