Question:
In the laboratory, manganese (II) salt is oxidized to permanganate ion in aqueous solution by:
In the laboratory, manganese (II) salt is oxidized to permanganate ion in aqueous solution by:
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Peroxy disulphate is a strong oxidizer often used in laboratory settings to convert manganese (II) salts to permanganate ions.
Updated On: Apr 3, 2025
- hydrogen peroxide
- conc. nitric acid
- peroxy disulphate
- dichromate
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The Correct Option is C
Solution and Explanation
Step 1: Manganese (II) salts, such as \( {Mn}^{2+} \), can be oxidized to the permanganate ion \( {MnO}_4^- \) by various oxidizing agents.
Step 2: Among the Option:
- Hydrogen peroxide is commonly used to oxidize manganese (II) to permanganate, but it is not the best oxidizer in this case.
- Conc. nitric acid does not efficiently oxidize manganese (II) to permanganate.
- Peroxy disulphate (\( {(O}_2{SO}_2{)}_2^{2-} \)) is a powerful oxidizing agent and is known to oxidize \( {Mn}^{2+} \) to \( {MnO}_4^- \), making it the correct choice in this context.
- Dichromate is also an oxidizing agent but does not directly oxidize manganese (II) to permanganate.
Thus, the correct answer is option (C).
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