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Arrange the following in increasing order of acidic strength

Options

  1. AIII < V < IV < II < I
  2. BV < IV < III < II < I
  3. CIII < II < IV < I < V
  4. DI < II < III < IV < V

Correct answer

A. III < V < IV < II < I

Step-by-step solution

Acidic nature of sulphonic acid is more than that of carboxylic acid and carboxylic acid is more acidic then an alcohol. Acidic nature ∝ electron withdrawing group &#x221D; 1 electron &#x2004; releasing &#x2004; group . Here the correct order of acidic nature is III < V < IV < II < I.

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