Square-planar geometry is shown by

The correct order of $[FeF_6]^{3-}, [CoF_6]^{3-}, [Ni(CO)_4]$ and $[Ni(CN)_4]^{2-}$ complex species based on the number of unpaired electrons present is $:$

Which of the following complexes does not involve inner orbital hybridization?

Which from the following statements about $[Co(NH_3)_6]^{3+}$ complex is $NOT$ correct?

The $Cl-Co-Cl$ bond angle values in a $fac-[Co(NH_3)_3Cl_3]$ complex is/are:

The hybridization of $Ag^+$ in the linear complex $[Ag(NH_3)_2]^+$ is