Equivalent ConceptHardQuestion 600055
Question
The n-factor of H₂O₂ in the reaction 2KMnO₄ + 5H₂O₂ + 3H₂SO₄ → 2MnSO₄ + 5O₂ + K₂SO₄ + 8H₂O is:
- A1
- B2Correct
- C5
- D0
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.)