2.W.E-21: 20 mL of 0.2 M MnSo, are completelyoxidized by 16 mL of KMnO

1.	2.W.E-21: 20 mL of 0.2 M MnSo, are completelyoxidized by 16 mL of KMnO, of unknownnormality, each forming Mn4+ oxidation state.Find out the normality and molarity of KMnO,solution.
Answer» Answer: 2MnO4- + 16H+ + 5C2O42 - → 2Mn+2 + 8H2O + 10CO2 .Assertion: N1V1 = N2V2 V1 = N2V2N1 = 0.1 × 20(0.1 × 5) = 4 ML Hence, an assertion is WRONG.

2.W.E-21: 20 mL of 0.2 M MnSo, are completelyoxidized by 16 mL of KMnO, of unknownnormality, each forming Mn4+ oxidation state.Find out the normality and molarity of KMnO,solution.

Answer»

Answer:

2MnO4- + 16H+ + 5C2O42 - → 2Mn+2 + 8H2O + 10CO2 .Assertion: N1V1 = N2V2 V1 = N2V2N1 = 0.1 × 20(0.1 × 5) = 4 ML Hence, an assertion is WRONG.