"Hydrogen peroxide is a strong oxidising agent both acid and alkaline medium".Justify this statement by giving suitable examples.
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Explanation:
Hydrogen peroxide acts as a reduction agent in both acidic and alkaline media in the presence of a powerful oxidizing agent. The mixture of H2O2 with the oxygen atom released by the powerful oxidizing agent is always producing molecular oxygen in these responses.
When H2O2 acts as an oxidizing agent, hydrogen peroxide oxygen (which is present in -1 oxidizing state) is decreased to H2O (-2 oxidizing state).
H2O2 + 2H + 2e → 2H2O
The oxygen of H2O2 is oxidized to O2 (0 oxidation state) and bubbles are noticed when H2O2 (-1 oxidation state) serves as a producer. As an agent of reduction:
2 MnO4 + 5H2O2 + 6H → 5 O2 + 2 Mn2 + 8H2O
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