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Question: Answered & Verified by Expert
Although +3 oxidation state is the characteristic oxidation state of lanthanoids, cerium shows +4 oxidation state also. Why?
Chemistryd and f Block ElementsNEET
Options:
  • A Cerium has a smaller atomic size than other lanthanoids.
  • B Cerium has a more stable electronic configuration in the +4 oxidation state.
  • C Cerium has a lower ionization energy than other lanthanoids.
  • D Cerium has a larger number of unpaired electrons.
Solution:
1959 Upvotes Verified Answer
The correct answer is: Cerium has a more stable electronic configuration in the +4 oxidation state.
Correct Option is : (B)
Cerium has a more stable electronic configuration in the +4 oxidation state.

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