Redox and Equivalent ConceptHard

Question

During the oxidation of Mn2+ to MnO4− by PbO2 in acid medium, the number of moles of acid consumed per mole of Mn2+ ion is

Options

A.4
B.1/2
C.2
D.1/4

Solution

$2Mn^{2 +} + 5PbO_{2} + 4H^{+} \rightarrow 2MnO_{4}^{-} + 5Pb^{2 +} + 2H_{2}O$

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