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KCET · Chemistry · Carboxylic Acid Derivatives

Chloroacetic acid is a stronger acid than acetic acid. This can be explained using

  1. A - M effect
  2. B - I effect
  3. C \(+\mathrm{M}\) effect
  4. D + I effect
Verified Solution

Answer & Solution

Correct Answer

(B) - I effect

Step-by-step Solution

Detailed explanation

-Cl is an electron withdrawing (ie, \(-I\) showing) group. It withdraws electrons when attached to the carboxylic acid and decreases the electron density on the oxygen atom. This will facilitate the release of \(\mathrm{H}^{+}\)by making \(\mathrm{O}-\mathrm{H}\) bond more polar and thus \(-\mathrm{Cl}\) increases the acidity of acetic acid when attached at, \(\alpha\) position because of -I effect.