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MHT CET202615 April 2026Evening ShiftChemistryp Block Elements (Group 15, 16, 17 & 18)Actual

Identify weakest acid from following.

Options

  1. AHypochlorous acid
  2. BChlorous acid
  3. CChloric acid
  4. DPerchloric acid

Correct answer

A. Hypochlorous acid

Step-by-step solution

The given acids are oxoacids of chlorine. The chemical formulas and oxidation states of chlorine in these acids are: Hypochlorous acid: HClO (Oxidation state of Cl = +1 ) Chlorous acid: HClO₂ (Oxidation state of Cl = +3 ) Chloric acid: HClO₃ (Oxidation state of Cl = +5 ) Perchloric acid: HClO₄ (Oxidation state of Cl = +7 ) The acidic strength of oxoacids of the same halogen increases with an increase in the oxidation number of the halogen atom. This is because a higher oxidation state of the central atom leads to g

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