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In the reaction,
MnO4- + 5Fe2+ + 8H+ ---> Mn2+ + 5Fe3+ + 4H2O,
A.) Fe3+ is oxidized and Mn2+ is reduced
B.) H+ is oxidized and MnO4- is reduced
C.) Fe2+ is oxidized and MnO4- is reduced
D.) Electrons are transferred from Mn2+ to Fe2+

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Answer:

In the reaction, Fe2+ is oxidized and MnO4- is reduced (option c.)

Explanation:

MnOā‚„ā» Ā  + Ā 5FeĀ²āŗ Ā + 8Hāŗ ---> MnĀ²āŗ Ā + Ā 5FeĀ³āŗ Ā + Ā 4H2O

Look all, the oxidation number.

Increase the oxidation number means, oxidation.

Decrease the oxidation number means, reduction.

FeĀ²āŗ ā†’ FeĀ³āŗ is increasing, the ox. number. Fe is oxidizing.

In MnOā‚„ā», the Mn acts with +7, so in MnĀ²āŗ has decrease the ox. number.

Mn has reducted.

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