NEETChemistryCoordination Compounds
Which of the following coordination compounds is capable of exhibiting coordination isomerism?
Options
- A[ Co ( NH ₃)₅( NO ₂)] Cl ₂
- B[ Pt ( NH ₃)₄][ PdCl ₄]
- C[ Cr ( H ₂ O )₆] Cl ₃
- DK ₃[ Fe ( CN )₆]
Correct answer
B. [ Pt ( NH ₃)₄][ PdCl ₄]
Step-by-step solution
Coordination isomerism arises from the interchange of ligands between cationic and anionic entities of different metal ions present in a complex. Therefore, the compound must contain both a complex cation and a complex anion. Among the given options, only [ Pt ( NH ₃)₄][ PdCl ₄] consists of a complex cation [ Pt ( NH ₃)₄]²⁺ and a complex anion [ PdCl ₄]²⁻ . It can exhibit coordination isomerism (for example, forming [ Pd ( NH ₃)₄][ PtCl ₄] ). [ Co ( NH ₃)₅( NO ₂)] Cl ₂ contains an ambidentate ligand and exhibits li