(a) What is coordination isomerism? Give an example.

Explanation

(a) Complexes having the same molecular formula but the ligands are interchanged between the cationic and anionic entities of different metal ions are called co-ordination isomers and the phenomenon is called co-ordination isomerism.
E.g., `[Cr(NH_(3))_(6)] [CO(CN)_(6)]` and `[Cr(CN)_(6)][CO(NH_(3))_(6)]`
(b) Diammine silver (1) Dicyano argentate (i)