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The magnetic moment (spin only) of [NiCl...

The magnetic moment (spin only) of `[NiCl_(4)]^(2-)` is

A

1.82 B.M.

B

5.46 B.M.

C

2.82 B.M.

D

1.41 B.M.

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The correct Answer is:
C
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Valence bond theory successfully explains the magnetic behaviour of complexes. The substances which contains unpaired electrons. and paramagnetic character increases as the mumber of unpaired electrons increases. Magnetic moment of a complex can be determined experimentally and by using formula sqrt(n(n+2)) and we can determine the number of unpaired electrons in it. This information is important in writing the electronic structure of complex which in turm is also useful in deciding the geometry of complex. The magnetic moments (spin only) of [NiCl_(4)]^(2-) and [Ni(CN)_(4)]^(2-) are:

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TARGET PUBLICATION-COORDINATION COMPOUNDS-COMPETITIVE THINKING
  1. The complex ion which has no.'d' electrons in the central metal atom i...

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  2. Nickel (Z=28) combines with a uninegative monodentate ligand X^(-) to ...

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  3. The magnetic moment (spin only) of [NiCl(4)]^(2-) is

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  4. The d-electron configurations of Cr^(2+), Mn^(2+), Fe^(2+) and Co^(2+)...

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  5. Both [Ni(CO)4] and [Ni (CN)4]^(2-) are diamagnetic The hybridisation...

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  6. Which of the following spectrochemical series is TRUE ?

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  7. In which of the following coordination entities the magnitude fo Delta...

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  8. What type of hybridisation is involved in [Fe(CN)6]^(3-) ?

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  9. Which of these statements about [Co(CN)6]^(3-) is true?

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  10. Which of the following complexes is paramagnetic

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  11. Which one of the following complexes has highest magnetic moment value...

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  12. The pair having the same magnetic moment is. [ At. No. :Cr = 24, Mn ...

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  13. Which of the following complex ions is expected to absorb visible ligh...

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  14. Which of the following complex ions is not expected to absorve visible...

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  15. How many out of [TiF6]^(2-), [CoF6]^(3-) , Cu2Cl2 and [NiCl4]^(2-) are...

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  16. Correct increasing order for the wavelengths of absorption in the visi...

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  17. Finely divided iron combines with CO to give .

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  18. Which of the following has the highest stability constant at 298 K ?

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  19. CuSO4 , solution with excess of KCN gives .

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  20. The complex used as an anticancer agent is .

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