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Lanthanide for which +II and +III oxida...

Lanthanide for which +II and +III oxidation states are common is

A

La

B

Nd

C

Ce

D

Eu

Text Solution

Verified by Experts

The correct Answer is:
A
`""_La = [Xe] 5d^1 6 s^2`
`""_58Ce = [Xe] 4f^1 5d^1 6s^2`
+II and +III oxidation states are common for lanthanum. Ce and other lanthanides do not show +II oxidation state often.
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ERRORLESS-THE d-AND f- BLOCK ELEMENTS -Past Years Questions
  1. Identify the incorrect statement among the following

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  2. Because of lanthnoid contraction, which of the following pairs of elem...

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  3. Lanthanide for which +II and +III oxidation states are common is

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  4. Which of the following exhibits only +3 oxidation state?

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  5. Which of the following lanthanoid ions is diamagnetic ? (At nos . Ce...

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  6. Which one of the following statements related to lanthanons is incorre...

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  7. The electronic configuration of Eu (Atomic No. 63), Gd (Atomic No. 64)...

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  8. The correct order of ionic radii Y^(3+) , La^(3+) , Eu^(3+) and Lu^(3+...

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  9. The reason for greater range of oxidation state in actinoids is attrib...

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  10. Reacttion between the following pairs will produce H(2) except

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  11. Which of the following compounds is coloured

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  12. Which of the following compounds is not coloured ?

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  13. The nitrate of which metal left globule on heating strongly

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  14. K(2)Cr(2)O(7) on heating with aqueous NaOH gives

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  15. Acidified K(2)Cr(2)O(7) solution turns green when NasO(3) is added to ...

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  16. Which one of the following statements is correct when SO(2) is passed ...

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  17. Which of the statements is not true ?

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  18. Which of the following does not give oxygen on heating ?

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  19. KMnO4 can be prepared fromK2MnO4 as per the reaction: The reaction ...

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  20. The reaction of aqueous KMnO(4) with H(2)O(2) i acidic conditions give...

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