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Given below are two statements : Statement I : The E ° value of Ce 4 + / Ce 3 + is + 1 . 74 V Statement II : Ce is more stable in Ce 4 + state than Ce 3 + state. In the light of the above statements, choose the most appropriate answer from the options given below:

Options

  1. ABoth statement I and statement II are correct
  2. BStatement I is incorrect but statement II is correct
  3. CBoth statement I and statement II are incorrect
  4. DStatement I is correct but statement II is incorrect

Correct answer

D. Statement I is correct but statement II is incorrect

Step-by-step solution

The E ° value for Ce 4 + / Ce 3 + is + 1 . 74   V because the most stable oxidation state of lanthanide series elements is + 3 . It means Ce 3 + is more stable than Ce 4 + .

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