Question

Most common oxidation state foCe (Cerium) are :

• A. +3, +4
• B. +2, +3
• C. +2, +4
• D. +3, +5

Answer 1

Answer: (A)

+3, +4

Answer 2

Cerium Ce58[Xe]4f15d16s2

Its most stable oxidation state is +3 but +4 is also existing.