MnO_4(aq) + 8H + _(aq) + 5Fe²⁺ → Mn^2+(aq) + 4H₂O_(I). The oxidation number of manganese in the above reaction changed from?

A.

+7 to +2

B.

+6 to +2

C.

+5 to +2

D.

+4 to +2

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Correct answer is A

No explanation has been provided for this answer.

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