Cerium (Z = 58) is an important member of the lanthanoids. Which of th – InterviewSolution

1.	Cerium (Z = 58) is an important member of the lanthanoids. Which of the following statement about cerium is incorrect ?
Answer» The + 4 oxidation state of cerium is not known in solutions. The +3 oxidation state of cerium is more stable than +4 oxidation state. The common oxidation states of cerium are +3 and +4. Cerium (IV) acts as an OXIDISING agent. Solution :In `KMnO_(4)`, the oxidation state of MN is +7, which is the HIGHEST possible oxidation state of Mn. Therefore, it cannot be further oxidisedby `O_(3)`.

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