The value of in the following equation is

Chemistry Redox Reaction Oxidation Number and Oxidation State Single Correct MCQ

Published by: CGP EDU Academic Team

Published on: August 11, 2026

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The correct answer is:

So, oxidation no. of Cr changes from +6 to +3, and overall decrease for two Cr atoms is -6.
So, it gains 6 electrons.

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