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The d-electron configurations of Cr^(2+)...

The d-electron configurations of `Cr^(2+), Mn^(2+), Fe^(2+)` and `Co^(2+)` are `d^4, d^5, d^6` and `d^7` respectively. Which one of the following will exhibit minimum paramagnetic behavious?

A

`[Cr (H_(2)O)_(6)]^(2+)`

B

`[Mn (H_(2)O)_(6)]^(2+)`

C

`[Fe(H_(2)O)_(6)]^(2+)`

D

`[Co(H_(2)O)_(6)]^(2+)`

Text Solution

Verified by Experts

The correct Answer is:
D
It has having minimum number of unpaired electrons i.e 3.
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MHTCET PREVIOUS YEAR PAPERS AND PRACTICE PAPERS-COORDINATION COMPOUNDS-Exercise 1
  1. In Spectrochemical series , chorine is above than water . I .e ...

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

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

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

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

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

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  7. Magnetic moment of the compledxes is zero in

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

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  9. Which one of the following is wrongly matched ?

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

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

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

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

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

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

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

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

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

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

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  20. Of the following complex ions, which is diamagnetic in natures?

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