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Among the following the compound that is...

Among the following the compound that is both paramagnetic and coloured is

A

`K_(2)Cr_(2)O_(7)`

B

`[Co(SO_(4))]`

C

`(NH_(4))_(2)[TiCl_(6)]`

D

`K_(3)[Cu(CN)_(4)]`

Text Solution

Verified by Experts

The correct Answer is:
B
In `[Co(SO_(4))]` , the oxidation state of Co is + 2 . Configuration of `Co^(2+) = 3d^(7)` , it has unpaired electrons in 3d-orbitals so it is paramagnetic . Because of incompletely filled d-orbitals it is coloured .
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NCERT FINGERTIPS-COORDINATION COMPOUNDS -Bonding In Coordination Compounds
  1. When excess of ammonia is added to CuSO4 solution, the deep blue colou...

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  2. Pick out the correct statement with respect to [Mn(CN)(6)]^(3-):

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  3. Among the following the compound that is both paramagnetic and coloure...

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  4. The spin only magnetic moment value of Cr(CO)(6) is

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  5. Which of the following complexes will show maximum paramagnetism ?

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  6. Match the column I with column II and mark the appropriate choice .

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  7. Electronic configuration of [Cu(NH(3))(6)]^(2+) on the basis of crysta...

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  8. Which of the following energy level diagram for [FeF(6)]^(3-) is corre...

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  9. In [NiCl(4)]^(2-) ,the number of unparied electron is

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  10. Which of the following shell from an octahedral complex

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  11. The value of 'spin only' magnetic moment for one of the following conf...

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  12. Which of the following statements is/are correct ? (i) In octahedra...

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  13. [FeF(6)]^(3-) is paramagnetic due to presence of unpaired electrons in...

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  14. [Co(Cr(2)O(4))(3)]^(3-) is a

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  15. What are the correct oxidation state , coordination number , configura...

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  16. Which of the following statements is correct about [Co(H(2)O)(6)]^(2+)...

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  17. The increasing order of the crystal field splitting power of some comm...

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  18. What is crystal field splitting energy? How does the magnitude of tria...

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  19. Why are low spin tetrahedral complexes not formed ?

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  20. A substance appears coloured because

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