Statement I: The acidic strength of monosubstituted nitrophenol is higher than phenol because of electron withdrawing nitro group.Statement II: -nitrophenol, -nitrophenol and -nitrophenol will have same acidic strength as they have one nitro group attached to the phenolic ring.
- ABoth Statement I and Statement II are correct.
- BBoth Statement I and Statement II are incorrect.
- CStatement I is correct but Statement II is incorrect.
- DStatement I is incorrect but Statement II is correct.
Solution & Step-by-step Explanation
1. Statement I is correct: is an electron-withdrawing group ( and effects), which stabilizes the phenoxide ion, making nitrophenols more acidic than phenol.2. Statement II is incorrect: The acidic strength depends on the position of the group. The resonance effect () operates only at and positions, not . Thus, -nitrophenol and -nitrophenol are much stronger acids than -nitrophenol.