Question

Give the ionisation behaviour of the following salt:

Potassium argentocyanide

Answer 1

The formula of potassium argentocyanide is K[Ag(CN)₂].

When dissolved in water, it dissociates as: 

\[\ce{K[Ag(CN)2] -> K+ + [Ag(CN)2]-}\]

Thus, the [Ag(CN)₂]⁻ remains intact as a complex ion and does not dissociate further.

In solution, potassium argentocyanide furnishes is K⁺ and [Ag(CN)2]⁻.