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JEE Main202125 Feb 2021Morning ShiftChemistryd and f Block ElementsActual

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:

Options

  1. ABoth Statement I and Statement II are true
  2. BStatement I is true but Statement II is false
  3. CBoth Statement I and Statement II are false
  4. DStatement I is false but Statement II is true

Correct answer

A. Both Statement I and Statement II are true

Step-by-step solution

The + 3 oxidation state of lanthanide is most stable and therefore lanthanide in + 4 oxidation state has strong tendency to gain e - and converted into + 3 and therefore act as strong oxidizing agent. e . g .     Ce + 4 And therefore 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. ∴ EuSO 4 act as strong reducing agent.

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