![\[{{H}_{2}}S\left( g \right)\]](https://www.learnatnoon.com/s/wp-content/ql-cache/quicklatex.com-c8bf88a9a8a76dacccc6552af3570fa6_l3.png "Rendered by QuickLaTeX.com")
As a result of the foregoing procedure, the coordination entity obtained is K2[Cu(CN)4 ].
The above coordination entity does not ionize to produce Cu2+ ions since it is extremely stable. When hydrogen Sulphide gas is bubbled through it, no precipitate forms.