InterviewSolution
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InterviewSolution
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The hydridizoation states of the central metal ion in the complexes `[Co(NO_(2))_(6)]^(3-)` and `[Fr(CN)_(6)]^(4-)` areA. all `sp^(3) d^(2)`B. all `d^(2) sp^(3)`C. `sp^(3) d^(2)` , `d^(2) sp^(3)` and `d^(20 sp^(3)`D. `d^(2) sp^(3)` , `sp^(3) d^(2)` and `sp^(3 d^(2)` |
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Answer» Correct Answer - B `Co(3d^(7)4s^(2)) rarr Co^(3+) (3d^(6))` `Fe(3d^(6)4s^(2)) rarr Fe^(3+)(3d^(5))` `Fe(3d^(6)4s^(2))rarr Fe^(3+)(3d^(6))` All six coordinate complexes are octahedral. Strong field ligands such as `NO_(2)^(-)` and `CN^(-)` reshuffle the 3d electronic configuration to provide two unoccpied 3d orbitals for `d^(2) sp^(3)` hybridisation. |
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