The IUPAC name of the complex P t N H 3 2 C l N H 2 C H 3 C l is

${\text{NH}}_{\text{3}}$ is neutral ligand, its IUPAC name is ammine

$\text{Cl}$ is negative ligand, its IUPAC name is chlrido

${\text{NH}}_{\text{2}}{\text{CH}}_{\text{3}}$ is neutral ligand, its IUPAC name is methanamine

Oxidation state of platinum $\Rightarrow \left[x+2\times 0+1\left(-1\right)+1\left(0\right)\right]=1$

$\mathrm{x}=2$
Naming of ligand should be done in the alphabetically order.

The IUPAC name of the complex is Diamminechlorido (methanamine) platinum $\left(\mathrm{I}\mathrm{I}\right)$ chloride