The reaction between H2O2 and KMnO4 is 2KMnO4 + 3H2SO4 + 5H2O2 → K2SO4 + 2MnSO4 + 8H2O + 5O2.If 30 ml H2O2 is required to reduce 15 ml 0.02 M KMnO4 solution, the molarity of H2O2 is
2 KMnO4 + 3H2SO4 + 5H2O2 → K2SO4 + 2MnSO4 + 8H2O + 5O2
No of equivalents of H2O2 = No of equivalents of KMnO4
N1 x 30 = 0.02 x 5 x 15
0.025M,30ml H2O2 is required to reduce 15ml of 0.02M KMnO4 solution.
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