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Home Questions EFST8QNCYM
Target Exam

CUET

Subject

Chemistry

Chapter

Inorganic: D and F Block Elements

Question:

Cerium (Z = 58) is an important member of lanthanides, which of the following statements about cerium is incorrect?

Options:

The common oxidation states of cerium are +3 and +4.

The +3 oxidation state of cerium is more stable than +4 oxidation state.

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

Cerium (IV) act as an oxidizing agent.

Correct Answer:

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

Explanation:
  • +4 oxidation state, is common for the Cerium.

The correct statement about the Cerium are as follows:
(i)  The common oxidation state of Cerium are +3, and +4.
(ii) The +3 oxidation state of the Cerium is more stable than the +4 oxidation state.
(iii) Cerium (IV) acts as an oxidising agent

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