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