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JEE Main 202225 JuneMorning Shift

Exam: JEE Main
Year: 2022
Date: 25 June
Shift: Morning Shift
Subject: Chemistry
Chapter: d and f Block Elements

JEE Main 2022 · 25 June · Morning Shift · Chemistry · d and f Block Elements

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

Cerium

\left(IV\right)

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

Options

AIt will prefer to gain electron and act as an oxidizing agent
BIt will prefer to give away an electron and behave as reducing agent
CIt will not prefer to undergo redox reactions.
DIt acts as both, oxidizing and reducing agent.

Correct answer

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

Step-by-step solution

Formation of

{Ce}^{IV}

is favoured by its noble gas configuration but it is strong oxidant reverting to the

+ 3

state. The

{E}^{o}

value for

\dfrac{{Ce}^{4 +}}{{Ce}^{3 +}}

is

{E}_{{Ce}^{4 +} / {Ce}^{3 +}}^{o} = 1 . 74V

is favourable for its oxidising nature.

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