Which of the following equation depicts reducing nature of H2O2?

1
2[Fe(CN)6]4– + 2H+ + H2O2 → 2[Fe (CN)6]3– + 2H2O
2
I2 + H2O2 + 2OH → 2I + 2H2O + O2
3
Mn2+ + H2O2 → Mn4+ + 2OH 
4
PbS + 4H2O2 → PbSO4 + 4H2O

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