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Question

For the reaction between KMnO4 and H2O2, the number of electrons transferred per mole of H2O2 is:

A
One
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B
Two
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C
Three
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D
Four
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Solution

The correct option is B Two
The half reactions are:
2MnO4+16H++10e2Mn2++8H2
5H2O25O2+10H++10e
The number of electron transferred per mole of hydrogen peroxide =10/5=2.
Hence, option (b) is the correct answer.

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