MEDIUMMCQ SINGLEIChO (Chemistry Olympiad)Physical ChemistryRedox Reactions/Volumetric AnalysisConcept of Oxidation and Reduction

In the following equation MnO₂ acts as MnO 2H O 2e MnO 4OH →

A.Oxidising agent

B.Reducing agent✓ Correct

C.Both oxidizing and reducing agent.

D.Neither oxidizing nor reducing agent.

Explanation

Reducing agent Oxidation Number 12. The oxidation state of osmium (Os) in OsO₄ is (a) + 7 (b) + 5 (c) + 4 (d) + 8 Ans (d) Sol. 4 OsO x+4 (-2)=0 x=+8 x Hence, the oxidation state of Os is +8.

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