In this complex, the Cation is [Ag(NH3)2]+ ion.
The Anion [Ag(CN)2]− ion
Name of Cation
= Diammine silver(I) ion
Name of Anion
=Dicyano argentate(I)ion
The name of the complex is
=DIAMMINE Silver(I) Dicyano Argentate (I)
Here NH3 is a neutral ligand and CN− is a negative ligand.
So the OXIDATION-NUMBER of Ag=+1