Which type of isomerism is exhibited by the following compounds?
(a) [Co(NH₃)₄ Br₂]Cl and [Co(NH₃)₄ ClBr]Br
(b) [Co(NH₃)₅ NO₂]²⁺ and [Co(NH₃)₅ ONO]²⁺
(c) [Pt(NH₃)₄][PdCl₄] and [Pd(NH₃)₄][PtCl₄]
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To quickly identify these:
- Ionisation: Look for different ions outside the brackets [ ].
- Linkage: Look for ambidentate ligands (NO₂, SCN, CN).
- Coordination: Look for two sets of brackets [ ][ ] with swapped metals/ligands.