Which of the ligands can show linkage isomerism?

Platinum ($\mathrm{II}$) forms square planar complexes and platinum ($\mathrm{IV}$) gives octahedral complexes. How many geometrical isomers are possible for each of the following complexes? Describe their structures.

${\left[\mathrm{Pt}{\left({\mathrm{NH}}_3\right)}_3\mathrm{Cl}\right]}^{+}$

Platinum ($\mathrm{II}$) forms square planar complexes and platinum ($\mathrm{IV}$) gives octahedral complexes. How many geometrical isomers are possible for each of the following complexes? Describe their structures:

${\left[\mathrm{Pt}\left({\mathrm{NH}}_3\right){\mathrm{Cl}}_5\right]}^{-}$

Platinum ($\mathrm{II}$) forms square planar complexes and platinum ($\mathrm{IV}$) gives octahedral complexes. How many geometrical isomers are possible for the following complex? Describe their structures:

$\left[\mathrm{Pt}{\left({\mathrm{NH}}_3\right)}_2\mathrm{Cl}\left({\mathrm{NO}}_2\right)\right]$

Platinum ($\mathrm{II}$) forms square planar complexes and platinum ($\mathrm{IV}$) gives octahedral complexes. How many geometrical isomers are possible for the following complex? Describe their structures:

${\left[\mathrm{Pt}{\left({\mathrm{NH}}_3\right)}_4\mathrm{BrCl}\right]}^{2+}$