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What is the most common oxidation state of lanthanides?

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in Chemistry – Class 12 by (188k points)
What is the most common oxidation state of lanthanides?

(a) +2

(b) +4

(c) +6

(d) +3

The question was posed to me in a national level competition.

This intriguing question originated from D and F-Block Elements in portion D and F-Block Elements of Chemistry – Class 12

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Best answer
Correct choice is (d) +3

To explain I would say: The most common and stable oxidation state of lanthanides is +3. Some elements also exhibit +4 oxidation states. Some elements exhibit +2 oxidation state also due to their half-filled, fully-filled and noble gas configuration.

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