The common oxidation state of elements of lanthanide series is
A
1
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B
3
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C
4
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D
6
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Solution
The correct option is B 3 Lanthanides show variable oxidation states. The most stable oxidation state of Lanthanides is +3. They also show +2 and +4 oxidation states due to the presence of either half filled or completely filled or empty 4f sub shell.