The correct order of strengths of carboxylic acids is

The correct order of strengths of carboxylic acids is
  1. I>II>III
  2. II>III>I
  3. III>II>I
  4. II>I>III

Solution

As the order of the negative inductive effect increases, the acidity of the carboxylic acids increases.

On the basis of -I effect, the correct acidic strength would be:

Asked in: NEET 2016 (Phase 2)

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