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In which of the following reactions does hydrogen peroxide act as a reducing agent?

In which of the following reactions does hydrogen peroxide act as a reducing agent?
  • A.
    H2S + H2O2 (to) S + 2H2O
  • B.
    PbSO3 + H2O2 (to) PbSO4 + H2O
  • C.
    2I+ 2H+ + H2O2 (to) I2 + 2H2O
  • D.
    PbO2 + 2HNO3 + H2O2 (to) Pb(NO3)2 + 2H2O + O2
  • E.
    SO2 + H2O2 (to) H2SO4
Correct Answer: Option D
Explanation

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