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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 behaviour ? (At. nos. Cr = 24, Mn = 25, Fe = 26, Co = 27)

A

`[Mn(H_2O)_6]^(2+)`

B

`[Fe(H_2O)_6]^(2+)`

C

`[Co(H_2O)_6]^(2+)`

D

`[Cr(H_2O)_6]^(2+)`

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MODERN PUBLICATION-COORDINATION COMPOUNDS-EXERCISE
  1. The complexes [Co(NH3)6][Cr(CN)6] and [Cr(NH3)6] [Co(CN)6] are the exa...

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  2. The complex, [Pt(Py(NH3)BrCl] will have how many geometrical isomers ?

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

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  4. Of the following complex ions, which is diamagnetic in nature ?

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  5. Which one of the following is an outer orbital complex and exhibits pa...

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  6. A magnetic moment of 1.73 B.M. will be shown by one among of the follo...

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  8. Express 2263 in roman numbers.

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  9. Which of the following complexes is used to be as an anticancer agent ...

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  10. The name of complex [Fe(CN)6]^(3-) is

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  11. The hybridization involved in complex [Ni(CN)4]^(2-) is: (At No. Ni = ...

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  12. The sum of coordination number and oxidation number of the metal M in ...

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  13. Number of possible isomers for the complex [Co(en)2Cl2]Cl will be : (e...

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  14. Magnetic moment 2.84 B.M. is given by: (At. nos. Ni = 28, Ti = 22, Cr ...

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  15. Cobalt (III) chloride forms several octahedral complexes with ammonia....

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

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  17. Which of the following has longest C-O bond length? (Free C-O bond len...

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  18. Jahn-Teller effect is not observed in high spin complexes of

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  19. When one mole of each of the following complex salts is treated with e...

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  20. Duralumin alloy is a mixture of metals. Explain how?

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