The primary valence of the metal ion in the coordination compound `K_2[Ni(CN)_4]` is

The primary valency of the metal ion in the co-ordination compound, K_2[Ni(CN)_4] is

The primary valence of the metal ion in the co-ordination compound Na_2[Co(CN)_4] is _________.

The primary valence of the metal ion in the co-ordination compound Na_2[Co(CN)_4] is _________.

The primary valency of the metal ion is satisfied by

What is the primary valence of iron in the coordination entity of compound Fe_4[Fe(CN)_6]_3 ?

What is the coordinate number of the central metal ions in the following coordination compound ? K_4[Ni(CN)_4]

Consider the coordination compound [Co(NH_3)_5Cl]Cl_2 what is the primary valence and secondary valence of the central metal ion in the above co ordination compound.

What is the coordinate number of the central metal ions in the following coordination compound ? [Ni(CN)_4]^(-2)