Question:medium
In an oxidation-reduction reaction, what happens to the oxidation state of the central atom in \( \text{MnO}_4^- \) when it is reduced to \( \text{Mn}^{2+} \)?
In an oxidation-reduction reaction, what happens to the oxidation state of the central atom in \( \text{MnO}_4^- \) when it is reduced to \( \text{Mn}^{2+} \)?
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When solving oxidation-reduction problems, always determine the oxidation states of the elements involved before and after the reaction.
Updated On: Mar 19, 2026
- 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.
Show Solution
The Correct Option is B
Solution and Explanation
In the compound MnO4-, manganese (Mn) exhibits an oxidation state of +7.
During the reduction of MnO4- to Mn2+, the oxidation state of manganese transitions to +2.
This transformation is classified as a reduction process because the manganese atom acquires electrons, leading to a diminished oxidation state.
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