MCQ
Given below are two statements

Statement $I : CeO _{2}$ can be used for oxidation of aldehydes and ketones.

Statement $II :$ Aqueous solution of $EuSO _{4}$ is a strong reducing agent.

In the light of the above statements, choose the correct answer from the options given below

  • A
    Statement $I$ is false but statement $II$ is true
  • B
    Statment $I$ is true but statement $II$ is false
  • Both statement $I$ and statement $II$ are true
  • D
    Both statement $I$ and statement $II$ are false

Answer

Correct option: C.
Both statement $I$ and statement $II$ are true
c
The $+3$ oxidation state of lanthanide is most stable and therefore lanthanide in $+4$ oxidation state has strong tendence to gain $e ^{-}$ and converted into $+3$ and therefore act as strong oxidizing agent.

$eg Ce ^{+4}$ And there fore $CeO _{2}$ is used to oxidized alcohol aldehyde and ketones.

Lanthanide in $+2$ oxidation state has strong tendency to loss $e ^{-}$ and converted into $+3$ oxidation state therefore act as strong reducing agent.

$\therefore EuSO _{4}$ act as strong reducing agent.

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