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Which of the following lanthanoids has h...

Which of the following lanthanoids has highest tendency to form complexes ?

A

`Ce^(+3)`

B

`Pm^(+2)`

C

` Lu^(+3)`

D

`Eu^(+2)`

Text Solution

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The correct Answer is:
C
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NARAYNA-D - BLOCK ELEMENTS-EXERCISE-2
  1. The stability of higher oxidation states on moving down the group in t...

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  2. In aqueous solutions Eu^(2+) acts as

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  3. Which of the following lanthanoids has highest tendency to form comple...

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  4. Choose the correct statement regarding bonding in FeCl(3) (I) It c...

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  5. Stability of an oxidation state depend on

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  6. The radius of La^(3+)(Z=57) is 106 pm. Which one of the following give...

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  7. Zr(Z=40) and Hf(Z=72) have similar atomic and ionic radii because of:

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  8. A blue colouration is not obtained when

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  9. Turnbull's blue is a .............

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  10. The colourless species is

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  11. What will the structure of CrO(5) in presence of pyridine ?

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  12. [Ti(H(2)O)(6)]^(3+) is purple in colour because it is complimentary co...

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  13. Number of electrons transferred in each case when KMnO(4) acts as an o...

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  14. MnO(4)^(-) is of intense pink colour, though Mn is in(+7) oxidation st...

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  15. KMnO(4) dissollution in concentration H(2)SO(4) results in explosion d...

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  16. When K(2)MnO(4) is added in solution of NH(4)Cl then

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  17. K(2)Cr(2)O(7) is preferred to Na(2)Cr(2)O(7) for use in volumetric ana...

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  18. The blue colour produced on adding H2O2 to acidified K2Cr2O7 is due to...

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  19. CrO(3) dissolves in aqueous NaOH to give:

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  20. The n-factor for K(2)Cr(2)O(7) in acidic medium is

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