1 D and F Block Elements
Cerium (Z= 58) is an important member of the lanthanides. Which of the following statements about cerium is incorrect ?
1) The common oxidation states of cerium are + 3 and +4 2) The + 3 oxidation state of cerium is more stable than the + 4 oxidation state 3) The + 4 oxidation state of cerium is not known in solutions 4) Cerium (IV) acts as an oxidising agent
SOLUTIONS
Cerium exhibits three oxidation states, +2, +3 and +4. But +2 state is rare observed in some organometallic complexes. Hence the common oxidation states of cerium are +3 and +4.
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