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Cerium shows oxidation state of +4 becau...

Cerium shows oxidation state of `+4` because

A

it resembles alkali metals

B

it has very low IE

C

it has tendency to attain boble gas configuration

D

it has tendency to attain `f^(@)` - configuration

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The correct Answer is:
D
After loss of 4 - electrons cerium attains `f^(0)`-configuraiton.
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