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KCET2012ChemistryCarboxylic Acid Derivatives

The relative acidic strengths of benzoic acid, o -toluic acid and p -toluic acid is of the decreasing order

Options

  1. Ao -toluic acid >p -toluic acid > benzoic acid
  2. Bp -toluic acid > benzoic acid >0 -toluic acid
  3. C0 -toluic acid > benzoic acid >p -toluic acid
  4. Dp -toluic acid >0 -toluic acid > benzoic acid

Correct answer

C. 0 -toluic acid > benzoic acid >p -toluic acid

Step-by-step solution

+ I effect showing groups like CH ₃ when present decreases the acidic strength of carboxylic acids but ortho toluic acid is more acidic due to ortho effect.

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