What is the correct IUPAC name of $[Pt(NH_3)_2Cl_2]$?

diamminedichloridoplatinum (II)

The correct answer is Option (1) → diamminedichloridoplatinum (II)

• Ligands present: NH₃ (ammine) ×2 (neutral) and Cl⁻ (chlorido) ×2
• Oxidation state of Pt = +2
• Ligands are named alphabetically (ignoring prefixes): ammine comes before chlorido

Hence, the correct name is diamminedichloridoplatinum (II).