Which of the following shall form an octahedral complex?

Question

Which of the following shall form an octahedral complex? (A) d4 (low spin) (B) d8 (high spin) (C) d6 (low spin) (D) All of these

Tardigrade Admin · Accepted Answer

In d6 (low spin) complex, two electrons get paired to make two d orbitals empty. The hybridisation will be d2sp3 (octahedral) and the complex is low spin complex in the absence of half-filled electrons.

Q. Which of the following shall form an octahedral complex?

$d^{4}$ (low spin)

$d^{8}$ (high spin)

$d^{6}$ (low spin)

All of these

In $d^{6}$ (low spin) complex, two electrons get paired to make two d orbitals empty. The hybridisation will be $d^{2} s p^{3}$ (octahedral) and the complex is low spin complex in the absence of half-filled electrons.