Coordination compounds in (i) Medicine and (ii) Electroplating.

Explanation

(i) Medicine : The complexes are used on a large scale in medicine. Many medicines in the complex form are more stable, more efferctive and can be assimiltated easily.
For example, platinum complex `[Pt(NH_(3))_(2)Cl_(2)]` Known as cisplatin by haevy metals like lead.
(ii) Electroplating : This involves depoistion of a metal on the other metal. For smooth plating, it is necessary to supply continuously the metal ions in small amounts.
For this purpose, a solution of a coordination compound is used which dissociates to a very less extent. For example for uniform and thin plating of silver and gold, the complexes `K[Ag(CN)_(2)]andK[(Au(CN)_(2)]` are used.