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MHT CET202619 April 2026Morning ShiftChemistryp Block Elements (Group 15, 16, 17 & 18)Actual

Which among the following oxoacids of chlorine exhibits +3 oxidation state of chlorine?

Options

  1. AHClO
  2. BHClO ₂
  3. CHClO ₃
  4. DHClO ₄

Correct answer

B. HClO ₂

Step-by-step solution

Let the oxidation state of chlorine be x . In HClO : +1 + x - 2 = 0 x = +1 In HClO ₂ : +1 + x + 2(-2) = 0 x = +3 In HClO ₃ : +1 + x + 3(-2) = 0 x = +5 In HClO ₄ : +1 + x + 4(-2) = 0 x = +7 Chlorine exhibits a +3 oxidation state in HClO ₂ . Answer: HClO ₂

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