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ExamsNEETChemistry

Among the substituent attached to the benzene ring, –NO2 group is the most electron withdrawing, thus withdraws electron density from carbonyl carbon thus facilitate the attack of OH⁻ ion.

  1. C=O
  2. C=O with NO2 group
  3. C=O with CH3 group
  4. C=O with H group

Correct answer: C=O with NO2 group

Solution

The –NO2 group is a strong electron-withdrawing group due to its -M (mesomeric) and -I (inductive) effects. This makes the carbonyl carbon more electrophilic, facilitating the attack of OH⁻ ion.

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