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Chemistry · PYQ NEET UG 2022
हिन्दीGiven 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:
Correct answer · Option 1
Statement I is correct but Statement II is incorrect.
Explanation
Statement I is correct because the electron-withdrawing \( -\text{NO}_2 \) group stabilizes the phenoxide ion through -I and -R effects. Statement II is incorrect because the positions (ortho, meta, para) of the nitro group have different resonance and inductive effects, resulting in different acidic strengths (p- and o- are more acidic than m-).
