Maximum number of stereoisomers are possible for the octahedral complex $Mabcdef$ :-

How many geometrical isomers are possible for the complex $[Mab(AB)_2]^{n \pm}$?

Identify the homoleptic complex(es) that is/are low spin.
$(A) \ [Fe(CN)_5NO]^{2-}$
$(B) \ [CoF_6]^{3-}$
$(C) \ [Fe(CN)_6]^{4-}$
$(D) \ [Co(NH_3)_6]^{3+}$
$(E) \ [Cr(H_2O)_6]^{2+}$
Choose the correct answer from the options given below:

The total number of possible isomers of the complex compound $[Cu(NH_3)_4] [PtCl_4]$ is:

What kind of isomerism exists between $[Cr(H_2O)_6]Cl_3$ and $[Cr(H_2O)_5Cl]Cl_2 \cdot H_2O$?

How many geometrical isomers will $[Pt(NH_3)(NH_2OH)(H_2O)(py)]^+$ form?