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The speration of lanthanides by ion exch...

The speration of lanthanides by ion exchanges method is based on

A

Sizes of the ions

B

Oxidation state of the ions

C

The solubility of their nitrates

D

Basicity of hydroxides of lanthanides

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The correct Answer is:
A
In ion exchange method, lanthanoids are separated on the basis of their size.
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PHYSICS WALLAH-THE D-AND F-BLOCK ELEMENTS-Level-2
  1. Transition elements show :

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  2. Amongst the following metals, which has highest melting point ?

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  3. Maximum oxidation state is shown by:

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  4. The stability of particular oxidation state of a metal in aqueous solu...

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  5. Which of the following is true for the species having 3d^(4) configura...

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  6. Magnetic moment of Cr^(+2)(Z=24),Mn^(+2)(Z=25) and Fe^(2+) (Z=26) are ...

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  7. The magneitc moment of .(25)Mn in ionic state is 4.83 B.M., then Mn is...

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  8. Which of the following compounds is used as the starting material for ...

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  9. The f-block of the periodic table contains those elements in which :

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  10. Identify the correct structure of dichromate ion is :

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  11. The +3 ion of which one of the following has half filled 4f subshell?

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  12. The lanthanide contraction is responsible for the fact that

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  13. The speration of lanthanides by ion exchanges method is based on

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  14. The metallic radii of Fe, Co and Ni are nearly same. This is due to :

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  15. Copper has higher second ionization energy than that of both adjacent ...

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  16. Which of the following pairs of ions has magnetic moment of 5.93 B. M....

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  17. The oxidation state of chromium is +6 in :

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  18. Which of the following ions will exhibit colour in aqueous solution ?

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  19. Which one of the following does not correctly represent the correct or...

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  20. Essential constituent of amalgam is

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