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Hydrogen peroxide acts both as an oxidising and as a reducing agent depending upon the nature of the reacting species. In which of the following cases H2O2 act as a reducing agent in acid medium?

Hydrogen

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15/12/2021 12:14 pm

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Palak23

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Hydrogen peroxide acts both as an oxidising and as a reducing agent depending upon the nature of the reacting species. In which of the following cases H₂O₂ act as a reducing agent in acid medium?

(a) MnO₄^-

(b) Cr₂O₇^2-

(d) KI

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15/12/2021 12:19 pm

Reyana09

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Correct answer: (a) MnO₄^-

Explanation:

H₂O₂ acts as a reducing agent only in presence of strong oxidising agents (i.e., MnO₄^-) in acidic as well as alkaline medium.

2KMnO₄ + 3H₂SO₄ + 5H₂O₂ → K₂SO₄ + 2MnSO₄ + 8H₂O + 5O₂

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Hydrogen peroxide acts both as an oxidising and as a reducing agent depending upon the nature of the reacting species. In which of the following cases H2O2 act as a reducing agent in acid medium?

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