Question

Which property of hydrogen peroxide decolorized the potassium permanganate solution.

Answer 1

Answer:

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Answer 2

Property of hydrogen peroxide

Explanation:

• In an acidic media, potassium permanganate works as a powerful oxidising agent, while hydrogen peroxide acts as a reducing agent.
• Hydrogen peroxide is oxidised by manganate(VII) ions to oxygen gas. Manganate(VII) ions are converted to manganese(II) ions during this process.
• The oxidising agent hydrogen peroxide is also used in the reaction of potassium permanganate with hydrogen peroxide. Hydrogen peroxide is a reducing agent because it loses one electron.
• In an acidic media, the ions add 5 electrons, while the two peroxide ions send forth two electrons.
• When potassium permanganate is added to hydrogen peroxide, it reacts with it to form acidified potassium dichromate.
• As hydrogen peroxide is reduced, its oxidation number changes to -2 from -1, and the chromium in the +6 oxidation state changes to the +3 oxidation state.
• In acid medium, potassium permanganate is a powerful oxidising agent, whereas in neutral and alkaline medium, it is a mild oxidant. Potassium permanganate fades quickly in strong acids (such as sulfuric acid).
• Potassium permanganate fades slowly in weak acids (such as acetic acid). Leachate has a neutral or weakly alkaline pH, and the oxidizability is low