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Form 4 Chemistry lessons on electrochemistry

Action of acidified potassium permanganate on hydrogen Peroxide.

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Answer Text:
Action of acidified potassium permanganate on Hydrogen Peroxide:
- The overall reaction is a Redox reaction

Note:
-The oxidation number of manganate ions in $KMnO_4$ decreases from 7 to 2 (in $Mn^(2+)$ ) hence reduction; while oxidation number of hydrogen increases from -1 (in $H_2O_2$ ) to 1 (in $H^(+)$ ); hence oxidation;
-Thus the acidified potassium manganate (VII) oxidizes hydrogen peroxide to water and hydrogen;