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WBJEE · Chemistry · General Organic Chemistry



The correct order of acidity of above compounds is

  1. A II \( > \) IV \( > \) I \( > \) III
  2. B III \( > \) IV \( > \) II \( > \) I
  3. C IV \( > \) II \( > \) III \( > \) I
  4. D IV \( > \) III \( > \) I \( > \) II
Verified Solution

Answer & Solution

Correct Answer

(D) IV \( > \) III \( > \) I \( > \) II

Step-by-step Solution

Detailed explanation

Hint : \(-\mathrm{NO}_2\) shows strong \(-\mathrm{R}\) \(-\mathrm{CH}=\mathrm{CH}_2\) shows \(-\mathrm{R}\) \(-\mathrm{CH}_3\) shows hyperconjugation \(-\mathrm{NMe}_2\) shows \(+\mathrm{R}\) Donating groups lowers acidity while withdrawing groups raise acidity