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Topic: Phenols: acidity, electrophilic substitution, Reimer-Tiemann· Organic Compounds Containing Oxygen

Given below are two statements :Statement I :The acidic strength of monosubstituted nitrophenol is higher than phenol because of electron withdrawing nitro group.Statement II :o-nitrophenol, m-nitrophenol and p-nitrophenol will have same acidic stren…

Given below are two statements :

Statement I :

The acidic strength of monosubstituted nitrophenol is higher than phenol because of electron withdrawing nitro group.

Statement II :

\(o\)-nitrophenol, \(m\)-nitrophenol and \(p\)-nitrophenol will have same acidic strength as they have one nitro group attached to the phenolic ring.

In the light of the above statements, choose the most appropriate answer from the options given below :

1. Statement I is incorrect but Statement II is correct.

2. Both Statement I and Statement II are correct.

3. Both Statement I and Statement II are incorrect.

4. Statement I is correct but Statement II is incorrect.

1 answer

Best answer

Answer: 4. Statement I is correct but Statement II is incorrect.

Key idea: the \(-NO_2\) group is electron withdrawing and stabilises the phenoxide ion, but its effect depends on position.

Statement I is correct: nitrophenols are more acidic than phenol.

Statement II is incorrect: the o- and p- isomers show both -I and -R effects, while the m- isomer shows only -I. Acid strength order: p- and o- > m- > phenol, so they are not equal.

Option 4.

Doubtly AI · 30 Oct 2026 AI-generated · not yet verified Report
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