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Chemistry Redox Reaction General Single Correct MCQ

Published by: CGP EDU Academic Team

Published on: August 11, 2026

Copper metal can be oxidized by

ions.

Oxidation number of phosphorus in

is 4.

An element in the highest oxidation state acts only as a reducing agent.

The element which shows highest oxidation number of +8 is Os in

Text Solution

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The correct answer is:

Cu cannot be oxidised by ion, oxidation number of phosphorus is zero. An element in its highest oxidation state acts as an oxidizing agent.

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