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Question

Calculate the value of EMnO4|MnO2.


MnO4+8H++5eMn2++4H2O; E=1.51V
MnO2+4H++2eMn2++2H2O; E=1.23V


A
1.70 V
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B
0.91 V
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C
1.37 V
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D
0.548 V
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