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Hydrogen Peroxide

Give the oxid...

Question

Give the oxidising properties of KMNO4 in acidic medium with
1) sodium arsenite
2) hydrogen peroxide

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Solution

1) KMnO4 doesnot oxidize sodium arsenite.

2) KMnO4 oxidizes hydrogen peroxide to H₂O in acidic medium. The reaction is as follows:
$2 K M n O_{4} + 3 H_{2} S O_{4} + 5 H_{2} O_{2} \to K_{2} S O_{4} + 2 M n S O_{4} + 8 H_{2} O + 5 O_{2}$

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