1.

Which of the following shall form an octahedral complex ?

Answer»

`d^(4)` (LOW spin)
`d^(8)` (high spin)
`d^(6)` (low spin)
All of these

Solution :In `d^(6)` (low spin), electrons PAIR up thereby making two empty d-orbitals available for `d^(2)sp^(3)` hybridisation as in the CASE of `[FE(CN)_(6)]^(4-)`


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