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b) Fe^2+ + NO3^- + 4H^+ → Fe^3+ + NO + 2H2O
c)3H2S + 8NO3^- + 2H^+ → 3SO4^2- + 8NO + 4H2O
d)Pb^2+ + ClO^- + 2OH^- → PbO2 + Cl^- + H2O
e)2I^- + 2Fe^3+ → I2 + 2Fe^2+
f) PbO2 + 2Cl^- + 2OH^- → Pb^2+ + Cl2 + 2H2O
g)Cr2O7^2- + 14H^+ + 6I^- → 2Cr^3+ + 3I2 + 7H2O