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In context of the lanthanoids, which of ...

In context of the lanthanoids, which of the following statements is not correct?

A

All the members exhibit `+3` oxidation state

B

Because similar properties, the separation of lanthanoids is not easy.

C

Availability of 4f electrons results in the formation of compounds in `+4` state forall the members of the series.

D

There is a gradual decrease in the radii of the members with increasing atomic number in the series

Text Solution

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Availabilityof 4f electrons does not result in the formation of compounds in `+4` oxidation state for all the members of the langthanoid series.
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PRADEEP-D- AND F-BLOCK ELEMENTS-COMPETITIONS FOCUS
  1. Among the following lanthanoid ions, the paramagnetic ion is

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  2. Consider the following statement in respect of Lantinanoids : (i) Th...

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  3. In context of the lanthanoids, which of the following statements is no...

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  4. Consider the following statements: (I) La(OH)(3) is the least b...

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  5. Which is not the correct statement about the chemistry of 3d and 4f se...

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  6. Which of the following elements shows maximum number of different oxid...

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  7. Which of the following is not an actinoid ?

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  8. Among the following pairs the maximum, oxidation states is shown by

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  9. The actinoids exhibit more number of oxidation states in general than ...

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

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  11. Reason of lanthanoid contraction is

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

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  13. All Cu(II) halides are known except the iodide. The reason for it is t...

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  14. In nitroprusside ion, the iron and NO exist as Fe(II) and NO^(+) rathe...

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  15. A red solid is insoluble in water. However, it becomes soluble if some...

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  16. [Fe(H(2)O)(5)NO]^(2+) is a complex formed during the brown ring test f...

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  17. WhenHg(2)Cl(2) ionizes, the ins produced and the unpaired electrons pr...

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  18. Prussian blue is -

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  19. Which one of the following reactions involves disproportionation ?

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  20. Pick out the correct statements from the following 1. Cobalt (III) ...

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