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JIPMER2013ChemistryCarboxylic Acid Derivatives

The correct order of increasing acidic strength is

Options

  1. Aphenol ethanol chloroacetic acid acetic acid
  2. Bethanol phenol chloroacetic acid acetic acid
  3. Cethanol phenol acetic acid chloroacetic acid
  4. Dchloroacetic acid acetic acid phenol ethanol

Correct answer

C. ethanol phenol acetic acid chloroacetic acid

Step-by-step solution

Due to - I effect of Cl , chloroacetic acid is a stronger acid than acetic acid. Further dur to stablisation of phenoxide ion by resonance and no such stabilisation in case of ethoxide ion, phenol is a stronger acid than ethanol. Hence, overall acid strength increases in the order; ethanol phenol acetic acid chloroacetic acid.

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