Question 23 of 87

In which reaction H2O2 acts as a reducing agent?

(a) Ag2O + H2O2 2Ag + H2O + O2

(b) 2KI + H2O2KOH + I2

(c) PbS + 4H2OPbSO4 + 4H2O2

(d) H2O+ SO2  H2SO4