$K_3[CoF_6]$ is a high-spin complex. The hybridization state of $Co$ in this complex is .....................

What is not correct about $[Fe(H_2O)_5NO]^{2+}$?

In an octahedral structure,which pair of $d$-orbitals is involved in ${d^2}sp^3$ hybridization?

Which of the following statements is not correct?

Explain why $[Co(NH_{3})_{6}]^{3+}$ is an inner orbital complex whereas $[Ni(NH_{3})_{6}]^{2+}$ is an outer orbital complex.

$A$ list of species having the formula $XZ_4$ is given below.
$XeF_4, SF_4, SiF_4, BF_4^-, BrF_4^-, [Cu(NH_3)_4]^{2+}, [FeCl_4]^{2-}, [CoCl_4]^{2-}$ and $[PtCl_4]^{2-}$.
Defining shape on the basis of the location of $X$ and $Z$ atoms,the total number of species having a square planar shape is