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High spin complex of d^6 configuration i...

High spin complex of `d^6` configuration in an octahedral field will have the CFSE equal to

A

`(-12)/5 triangle_circ`

B

`(-14)/5 triangle_circ`

C

`(-41)/5 triangle_circ`

D

`(-2)/5 triangle_circ`

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The correct Answer is:
D
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When degenerate d-orbitals of an isolated atom/ion come under influence of magnetic field of ligands, the degeneray is lost. The two set t_(2g)(d_(xy),d_(yz),d_(xz)) and e_(g) (d_(x^(2))-d_(x^(2)-y^(2)) are either stabilized or destabilized depending upon the nature of magnetic field. it can be expressed diagrammatically as: Value of CFSE depends upon nature of ligand and a spectrochemical series has been made experimentally, for tetrahedral complexes, Delta is about 4/9 times to Delta_(0) (CFSE for octahedral complex). this energy lies in visible region and i.e., why electronic transition are responsible for colour. such transition are not possible with d^(0) and d^(10) configuration. Q. For an octahedral complex, which of the followin d-electron configuration will give maximum CFSE?

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AAKASH INSTITUTE ENGLISH-Mock test 27-EXAMPLE
  1. The magnetic moment of a transition metal of 3d series is sqrt48 B.M. ...

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  2. Crystal field stabilisation energy for high spin d^(4) octahedral comp...

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  3. High spin complex of d^6 configuration in an octahedral field will hav...

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  4. The hybridized state of Al^(3+) in the complex ion formed when AlCl3 i...

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  5. Which of the following complexes is an inner orbtial complex ?

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  6. Which of the following pairs does not exhibit colour in solution ?

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  7. Which of the following complexes will show jahn-Teller distortion?

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  8. compounds having similar geometry have different magnetic moment(T/F)

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  9. The homoleptic complex is

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  10. Which of the following is not a metal carbonyl?

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  11. In which of the following carbonyls, the bond length of CO is the high...

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  12. The terminal and bridged CO ligands in the compound [Co(2) (CO)(8)] ar...

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  13. The addition of four amine groups to a metal ion (X^(2+)) shows a stab...

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  14. Excess of copper and iron are removed mainly by which of the following...

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  15. Ethylidene chloride is a/an…..

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  16. IUPAC nomenclature of

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  17. Major product of the given reaction is

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  18. Which of the following will not lead to the formation of an alkyl hali...

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  20. For the reaction C(2)H(5) OH + HX to C2 H(5) X + H(2)O , the order of ...

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