"What is the coordination entity formed when excess of aqueous KCN isadded to an aqueous
Channel: Doubtnut
Date: 2021-11-02

"What is the coordination entity formed when excess of aqueous KCN is
added to an aqueous solution of copper sulphate? Why is it that no precipitate
of copper sulphide is obtained when `H_(2)S` (g) is passed through this solution?"