Practice question

MCQ

Question

What is the key factor that makes ortho-nitrophenol more acidic than phenol?

Options

Choose one · Correct answer highlighted

Steric hindrance Hydrogen bonding Electron-withdrawing effect Correct Resonance in benzene ring

Explanation

The -NO₂ group in ortho-nitrophenol exerts a strong electron-withdrawing effect, stabilizing the phenoxide ion and increasing acidity compared to phenol.

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