A solution is containing `2.52g "litre"^(-1)` of a reductant, `25mL` of this solution required `20 mL` of `0.01M KMnO_(4)` in acid medium for ocidation. Find the mol. Wt of reducant. Given that each of the two atoms which undergo oxidation per molecule of reducant, suffer an increase in oxidation state by one unit.