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Cerium (Z = 58) is an important member o...

Cerium (Z = 58) is an important member of the lanthanoids. Which of the following statement about cerium is incorrect ?

A

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

B

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

C

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

D

Cerium (IV) acts as an oxidising agent.

Text Solution

Verified by Experts

The correct Answer is:
C
In `KMnO_(4)`, the oxidation state of Mn is +7, which is the highest possible oxidation state of Mn. Therefore, it cannot be further oxidised by `O_(3)`.
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MODERN PUBLICATION-CHEMISTRY OF D-AND F-BLOCK ELEMENTS-Multiple Choice Questions (Level-II)
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  2. When I^(-) is oxidised by MnO(4)^(-) is alkaline medium. I^(-) convert...

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  3. IN which of the following pairs, both the ions are coloured in aqueous...

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  4. Which one of the following ions is the most stable in aqueous solution...

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  5. Which of the following ions has a magnetic moment of 5.93 BM ?

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  6. The maximum oxidation state exhibited by actinide ions is :

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  7. Among the oxides Mn(2)O(7) (I), V(2)O(3) (II), V(2)O(5) , (III) CrO (I...

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  8. Which of the following pairs has the same size ?

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  9. All Cu(II) halides are known except the iodide. The reason for is that

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  10. The transition metal ion that has 'spin-only' magnetic moment value of...

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  11. The yellow precipitate formed during the chromyl chloride test in chem...

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  12. By passing Na2SO(3) to the solution of K(2)Cr(2)O(7), it turns green d...

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  13. For the four successive transition elements [Cr, Mn, Fe and CO) the st...

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  14. Which of the following statements is not true ?

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  15. The correct order of increasing oxidizing power in the series is

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  16. The bonds present in the structure of dichromate ion are

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  17. The radius of La^(3+) (At No. of La = 57) is 1.06Å. Which one of the f...

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  18. Cerium (Z = 58) is an important member of the lanthanoids. Which of th...

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  19. Explain why the members of the actinoid series exhibit a large number ...

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  20. The oxidation state of final product formed by the reaction between Kl...

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