In which of the following reactions, hydrogen peroxide acts as an oxidizing agent?

Chemistry · JEE Main · NTA Exams — Hydrogen

In which of the following reactions, hydrogen peroxide acts as an oxidizing agent?
  1. I2 + H2O2 + 2OH– → 2I– + 2H2O + O2
  2. PbS + 4H2O2 → PbSO4 + 4H2O
  3. 2MnO4– + 3H2O2 → 2MnO2 + 3O2 + 2H2O + 2OH–
  4. HOCl + H2O2 → H3O+ + Cl– + O2

Answer

(B) PbS + 4H 2 O 2 → PbSO 4 + 4H 2 O

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