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Magnetic moment 2.83 BM is shown by whic...

Magnetic moment `2.83 BM` is shown by which of the following ions?

A

`Mn^(2+)`

B

`Ti^(3+)`

C

`Ni^(2+)`

D

`Cr^(3+)`

Text Solution

Verified by Experts

The correct Answer is:
C
`Ni^(+2) - 3d^(8)4s^(@)` It has two unpaired electrons. Hence `mu = sqrt(n(n+2)) = sqrt(8)` = 2.83BM
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NARAYNA-D - BLOCK ELEMENTS-EXERCISE-3
  1. Acidified potassium permanganate soultion is decoloursied by

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  2. Identify the incorrect statement among the following :

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  3. Which of the following compounds is coloured?

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  4. What is the correct roder of spin only magnetic moment (in BM) of Mn^(...

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  5. For which of the following pairs, magnetic moment is same ?

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  6. Transition metals show paramagnetism

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  7. Among TiF(6)^(2-), CoF(6)^(3-), Cu(2)Cl(2) and NiCl(4)^(2-) (At. No. T...

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  8. Which of the following is magnetite ?

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  9. More number of oxidation states are exhibited by the actinoids than by...

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  10. Which of the following transition metal ion is not coloured?

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

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  12. Which of the following pairs has the same size ?

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  13. Acidified K(2)Cr(2)O(7), solution turns green when Na(2)SO(3) is added...

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  14. For the four successive transition elements (Cr, Mn, Fe, and Co), the ...

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  15. Which of the statements is not trure?

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  16. Identify the alloy containing a non metal as a constituent in it

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  17. Magnetic moment 2.83 BM is shown by which of the following ions?

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  18. Magnetic moments 2.84 B.M is given by : (At. nos. ni = 28, Ti = 22, ...

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  19. The number of d-electrons in Fe^(2+)(Z=26) is not equal to the number...

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

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