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NTA Abhyas JEE Main2020ChemistryCarboxylic Acid DerivativesPractice

Which of the following represents the correct order of the activity in the given compounds?

Options

  1. ACH 3 COOH   >   BrCH 2 COOH   >   ClCH 2 COOH   > &#x2
  2. BFCH 2 COOH   >   CH 3 COOH   >   BrCH 2 COOH   > &#x20
  3. CBrCH 2 COOH   >   ClCH 2 COOH   >   FCH 2 COOH   > &#x
  4. DFCH 2 COOH   >   ClCH 2 COOH   >   BrCH 2 COOH   > &#x

Correct answer

D. FCH 2 COOH   >   ClCH 2 COOH   >   BrCH 2 COOH   > &#x

Step-by-step solution

The acidity of halogenated acids increases proportionately with the increase in electronegativity of the halogen present. Therefore, the correct order is FCH 2 COOH   >   ClCH 2 COOH   >   BrCH 2 COOH   >   CH 3 COOH

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