Chemistry NCERT Exemplar Solutions Class 12th Chapter Two General Principles & Processes of Isolating Elemen Class 12th Chemistry

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

Option 1 - <p>Ce (At. No. 58)</p>

Option 2 - <p>La (At. No. 57)</p>

Option 3 - <p>Lu (At. No. 71)</p>

Option 4 - <p>Gd (At. No. 64)</p>

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Vishal Baghel | Contributor-Level 10

8 months ago

Correct Option - 1

Detailed Solution:

$C e^{3 +} \to [X e] 4 f^{1} 5 d^{0}$

$C e^{4 +} \to [X e] 4 f^{0} 5 d^{0}$ (Noble gas configuration)

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Chemistry NCERT Exemplar Solutions Class 12th Chapter Two 2025

Chemistry NCERT Exemplar Solutions Class 12th Chapter Two 2025

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