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Which of the following statements is fal...

Which of the following statements is false ?

A

First ionisation energies of 5d elements are higher than those of 3d and 4d elements.

B

Zr and Hf have similar properties.

C

`Cu^(2+)` is more stable than `Cu^(+)`

D

`V^(2+)` and `CO^(3+)` have same magnetic moment.

Text Solution

Verified by Experts

The correct Answer is:
D
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MODERN PUBLICATION-CHEMISTRY OF D-AND F-BLOCK ELEMENTS-Multiple Choice Questions (Level-II)
  1. In case of actinoids, the degree of complex formation decreases as :

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  2. In which of the following pairs, the first ion has larger magnetic mom...

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  3. Which of the following statements is false ?

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  4. The magnetic moment of Ce^(3+) (Z = 58) on the basis of spin only form...

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  5. The basic character of transition metal monoxides follow the order :

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

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  7. Lanthanoids are :

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  8. The number of moles of KMnO(4) reduced by one mole of Kl in alkaline m...

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  9. Four sucessive members of the first two transition elements are listed...

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  10. The aqueous solution containing which one fo the following ions will b...

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  11. Copper sulphate dissolves in excess of KCN to give :

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  12. Which is not correct about the chemistry of 3d and 4f series elements ...

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  13. The approximate percentage of iron in mischmetal is :

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  14. To an acidic solution of anion a few drops of acidified KMnO(4) are ...

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  15. The electronic configuration of transition element "X", is +3, oxidati...

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  16. The magnetic nature of elements depends on the presence of unpaired el...

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  17. Which of the following is amphoteric oxide ? Mn(2)O(7), CrO(3), Cr...

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  18. Gadolinium belongs to 4f series. Its atomic number is 64. Which of the...

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  19. KMnO(4) acts as an oxidising agent in alkaline medium. When alkaline K...

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  20. Although Zirconium belongs to 4d transition series and Hafnium to 5d t...

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