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

The magnetic moment (spin only) of `[NiCl_4]^(2-)` is

A

`1.82 `BM

B

`5.46`BM

C

`2.2 `BM

D

`1.41 ` BM

Text Solution

Verified by Experts

The correct Answer is:
C
Let ,x be the charge on the Ni
` x-4=-2`
`x=+2`
`Ni_((28))=[Ar]3d^(8)4S^(2)`

Magnetic moment (spin only )
` = sqrt( n(n+2))BM=sqrt(8)=2.828 BM `
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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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MHTCET PREVIOUS YEAR PAPERS AND PRACTICE PAPERS-COORDINATION COMPOUNDS-Exercise 1
  1. Which of the following complexes show linkage isomerism ?

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  2. According to IUPAC nomenclature sodium nitroprusside is named as

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  3. The magnetic moment (spin only) of [NiCl4]^(2-) is

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  4. In Spectrochemical series , chorine is above than water . I .e ...

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  5. What is the magnetic moment of K(3)|FeF(6)| ?

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

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  7. In which of the following coordination entites the magnitude of Delta(...

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  8. Which of the following complex species does not involve inner orbital ...

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  9. The CFSE for octahedral [CoCl(6)]^(4-) is 18,000 cm^(-1). The CFSE for...

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  10. Magnetic moment of the compledxes is zero in

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  11. For d^(4) ions the fourth electron enters one of the e(g ) ...

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  12. Which one of the following is wrongly matched ?

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  13. Which complex compound possesses sp^(3)d^(2) hybridization

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  14. The number of unpaired electrons in Ni (CO)(4) is

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  15. how many uppaired electrons are present in the central metal io...

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  16. Crystal field stabilization energy for high spin d^4 octahedral comple...

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

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  18. [NiCl(4)]^(2-) is paramagnetic while [Ni(CO)(4)] is diamagnetic though...

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  19. The correct relationship between Delta (t) and Delta (0) is expr...

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  20. [Sc(H(2)O)(6)]^(3+) ion is

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