Question

Is $\mathrm{AgCl}$ soluble in $\mathrm{NaCN}$?

Answer 1

Coordination compounds or complexes:

1. A coordination complex is made up of an atom or ion that serves as the coordination center, which is usually metallic, and a surrounding array of bonded molecules or ions called ligands or complexing agents.
2. $\mathrm{AgCl}$ is insoluble in water because the forces favoring the creation of silver hydroxide are insufficient to break the ionic connection between silver and chlorine.
3. But however, $\mathrm{AgCl}$ dissolves in $\mathrm{NaCN}$ because a coordination complex is formed i.e. Sodium ArgentoCyanide,
4. $\underset{\mathrm{Silver}\mathrm{chloride}}{\mathrm{AgCl}\left(\mathrm{s}\right)}+\underset{\mathrm{Sodium}\mathrm{cyanide}}{2\mathrm{NaCN}\left(\mathrm{s}\right)}\to \underset{\mathrm{Sodium}\mathrm{ArgentoCyanide}}{\mathrm{Na}\left[\mathrm{Ag}{\left(\mathrm{CN}\right)}_2\right]\left(\mathrm{s}\right)}+\underset{\mathrm{Sodium}\mathrm{chloride}}{\mathrm{NaCl}\left(\mathrm{s}\right)}$

Therefore, $\mathrm{AgCl}$ is soluble in$\mathrm{NaCN}$.