JEE Chemistry · Hard

Mole Concept and Stoichiometry: Equivalent Concept MCQ

Solve this quality-checked JEE multiple-choice question, then review the correct answer and explanation.

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Equivalent ConceptHardQuestion 600055

Question

The n-factor of H₂O₂ in the reaction 2KMnO₄ + 5H₂O₂ + 3H₂SO₄ → 2MnSO₄ + 5O₂ + K₂SO₄ + 8H₂O is:
  1. A
    1
  2. B
    2
    Correct
  3. C
    5
  4. D
    0

Correct answer

2

Explanation

In this reaction H₂O₂ is oxidised: O in H₂O₂ (−1) → O₂ (0). Change = 1 per O atom; 2 O atoms per H₂O₂ → n-factor = 2. (H₂O₂ acts as reducing agent here.)