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The correct order for acidity of the following hydroxyl compound is : (A) CH3OH (B) (CH3)3COH (C) Phenol (D) MeO—C6H4—OH (E) O2N—C6H4—OH Choose the correct answer from the options given below -

1. C > E > D > B > A
2. E > D > C > B > A
3. D > E > C > A > B
4. E > C > D > A > B

Correct answer: E > C > D > A > B

Solution

The correct order of acidity reflects the stability of the conjugate bases formed after deprotonation. The presence of electron-withdrawing groups, like the nitro group in E, enhances acidity by stabilizing the negative charge, while electron-donating groups, such as those in B, reduce acidity.

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