How many geometrical isomers does $[Pt(NH_3)(Br)(Cl)(Py)]$ have?

The magnetic moment of a transition metal ion is $3.87 \, B.M$. How many unpaired electrons are present in it?

The complex,$[Pt(Py)(NH_3)BrCl]$,will have how many geometrical isomers?

Which of the following compound$(s)$ exhibit geometrical isomerism?
$(i) [Pt(en)Cl_2]$
$(ii) [Pt(en)_2]Cl_2$
$(iii) [Pt(en)_2Cl_2]Cl_2$
$(iv) [Pt(NH_3)_2Cl_2]$

Which one of the following complex ions is diamagnetic in nature?

Due to the presence of ambidentate ligands,coordination compounds show isomerism. Palladium complexes of the type $[Pd(C_6H_5)_2(SCN)_2]$ and $[Pd(C_6H_5)_2(NCS)_2]$ are