Home Chemistry D and F - Block Elements JEE Main 2022 The most common oxidation state of Lanthanoi…
Chemistry D and F - Block Elements JEE Main 2022 Single Correct MCQ
Published on: August 14, 2026

The most common oxidation state of Lanthanoid elements is +3. Which of the following is likely to deviate easily from +3 oxidation state?

A
Ce (At. No. 58)
B
La (At. No. 57)
C
Lu (At. No. 71)
D
Gd (At. No. 64)

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Text Solution

Verified by Experts
The correct answer is:
A

Ce = [Xe] 4f 1 5d l 6s 2

Ce3 + = [Xe] 4f 1 5d 0

Ce +4 = [Xe] 4f° 5d° (Noble gas configuration)

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