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

What is the magnetic moment of `K_(3)|FeF_(6)|` ?

A

`5.91BM`

B

`4.89BM`

C

`3.87 BM`

D

`6.92 BM`

Text Solution

Verified by Experts

The correct Answer is:
A
`3K^(+) [FeF_(6)]^(3-)`
Let , x be the charge on Fe
` x +6 xx(-1) =-3`
`x=-3+6=+3`

As it contains five unpaired electrons , hence it is paramagnetic
magnetic moment `=sqrt( n(n+2))`
`=sqrt(5(5+2))=sqrt(35)=5.91`
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MHTCET PREVIOUS YEAR PAPERS AND PRACTICE PAPERS-COORDINATION COMPOUNDS-Exercise 1
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  5. In which of the following coordination entites the magnitude of Delta(...

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

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

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  8. Magnetic moment of the compledxes is zero in

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

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  10. Which one of the following is wrongly matched ?

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

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

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

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

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

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

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

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

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  19. Excited state configuration of Mn^(2+) is

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  20. Considering H2O as a weak field ligand, the number of unpaired electro...

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