Cerium (IV) has a noble gas configuration. Which of the fol…

Chemistry D and F - Block Elements JEE Main 2022 Single Correct MCQ

Published by: CGP EDU Academic Team

Published on: August 14, 2026

Cerium (IV) has a noble gas configuration. Which of the following is correct statement about it?

It will not prefer to undergo redox reactions.

It will prefer to gain electron and act as an oxidizing agent

It will prefer to give away an electron and behave as reducing agent

It acts as both, oxidizing and reducing agent.

Text Solution

Verified by Experts

The correct answer is:

Cerium exists in two different oxidation state

+3, +4

Ce +4 + 3e - Ce 3+ E° = + 1.61 V

Ce +3 + 3e - Ce E° = -2.336 V

It shows Ce +4 acts as a strong oxidising agent & accepts electron

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