JEE MAIN - Chemistry (2022 - 26th June Evening Shift - No. 6)

The most common oxidation state of Lanthanoid elements is +3. Which of the following is likely to deviate easily from +3 oxidation state?
Ce (At. No. 58)
La (At. No. 57)
Lu (At. No. 71)
Gd (At. No. 64)

Explanation

Ce → [Xe]4f1 5d1 6s2

Ce+4 → [xe] 4f° 5d° 6s°

Cerium in +4 oxidation state acquires inert gas configuration.

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