[Ag(NH3)2][Ag(CN)2] complex dissociates into [Ag(NH3)2]+ and [Ag(CN) ]. Oxidation of Ag in [Ag(NH3)2]+ Ag + 0 × 2 = + 1 Ag = + 1 Oxidation state of Ag in [Ag(CN)2]− Ag + (−1) × 2 = −1 Ag − 2 = −1 ⇒ Ag = + 1 ∴ Sum of oxidation states of two silver ions in [Ag(NH3)2][Ag(CN)2] complex is 2.