Chemistry · d and f Block Elements

JEE Main 2025 — 24 January, Morning Shift — Question 30

Which of the following ions is the strongest oxidizing agent?

(Atomic Number of $\mathrm{Ce}=58, \mathrm{Eu}=63, \mathrm{~Tb}=65, \mathrm{Lu}=71$ ]

Option A:
$\mathrm{Lu}^{3+}$
Option B:
$\mathrm{Eu}^{2+}$
Option C:
$\mathrm{Tb}^{4+}$
Correct
Option D:
$\mathrm{Ce}^{3+}$

Answer: C

Step-by-step solution

$\mathrm{Tb}^{4+}$ is strongest oxidising agent

Answer key and solution verified before publishing.

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Exam: JEE Main 2025
Paper: 24 January, Morning Shift
Subject: Chemistry
Chapter: d and f Block Elements
Topic: Inner transition elements (f-Block elements)

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