In an oxidation-reduction reaction, what happens to the oxidation state of the central atom in \( \text{MnO}_4^- \) when it is reduced to \( \text{Mn}^{2+} \)?
Show Hint
- The oxidation state increases from +7 to +2.
- The oxidation state decreases from +7 to +2.
- The oxidation state remains the same.
- The oxidation state increases from +2 to +7.
The Correct Option is B
Solution and Explanation
In the compound \( \text{MnO}_4^- \), the oxidation state of manganese (Mn) is +7. When \( \text{MnO}_4^- \) is reduced to \( \text{Mn}^{2+} \), the oxidation state of manganese decreases to +2.
This is a reduction process, as the manganese atom gains electrons, reducing its oxidation state.
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