1.

Total charge required for the oxidation of two moles `Mn_3O_4 ` into `MnO_4^(2-)` in presence of alkaline medium isA. 5 FB. 10 FC. 20 FD. None of these

Answer» Correct Answer - C
1 mole `Mn_(3)O_(4)" lose"(6-(8)/(3))xx3=10` mole `e^(-)` , so total charge required = `2xx10`= 20F


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