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NTA Abhyas JEE Main2020Chemistryd and f Block ElementsPractice

Cerium Z = 58 is a member of the lanthanoids. Identify the incorrect statements about cerium from the following

Options

  1. AThe +4 oxidation state of cerium is not known in solutions
  2. BThe +3 oxidation state of cerium is more stable than the +4 oxidation state
  3. CThe common oxidation states of cerium are +3 and +4
  4. DCerium (IV) acts as an oxidizing agent

Correct answer

A. The +4 oxidation state of cerium is not known in solutions

Step-by-step solution

The common oxidation states of cerium are +3 and +4. In which +3 state is more stable. + 4 oxidation state of cerium is also known in solution.

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