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Question: Answered & Verified by Expert
Most common oxidation states shown by cerium are
Chemistryd and f Block ElementsMHT CETMHT CET 2011
Options:
  • A $+2,+4$
  • B $+3,+4$
  • C $+3,+5$
  • D $+2,+3$
Solution:
2798 Upvotes Verified Answer
The correct answer is: $+3,+4$
The electronic configuration of Ce is as
$\mathrm{Ce}:[\mathrm{Xe}] 4 f^{2} 5 d^{0} 6 s^{2}$
The most common oxidation states shown by cerium are $+3$ and $+4$.

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