KMnO4 acts as an oxidising agent in acidic medium. The number of moles of KMnO4 that will be required to react with one mole of oxalate ions (to form CO2 ) in acidic solution is
MnO4−+8H++5e−⟶Mn2++4H2O]×2 C2O42−⟶CO2+2e−]×5 2MnO4−+5C2O42−+16H+⟶2Mn2++10CO2+8H2O 5 moles of C2O42− need 2 moles of KMnO4. 1 mole of C2O42− would need =