Civil Services UPSC EPFO (EO/AO) Mock Test 2023 General Science Chemistry Basic Concepts of Chemistry
With reference to the reaction KMnO4 + H2C2O4 + … → MnO2 + CO2 + … the equivalent weight of KMnO4 would be:
[Molar mass of KMnO4 = 158]1
158
2
52.66
3
22.57
4
39.50