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d and f BLOCK ELEMENTS
Question #39443
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Question
What happens to the oxidation state of manganese in the half-reaction MnO₄⁻ + 8H⁺ + 5e⁻ → Mn²⁺ + 4H₂O?
A. It decreases from +7 to +2
B. It increases from +2 to +7
C. It stays the same
D. It becomes zero
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