alleryIsomerism where ligands occupy different positions in a square planar complex:
AOptical
BGeometric (cis-trans)
CLinkage
DIonization
Answer & Solution
Correct answer: B. Geometric (cis-trans)
Square planar MA₂B₂ has cis (A's adjacent) and trans (A's opposite) isomers.
**Famous example:** cisplatin [PtCl₂(NH₃)₂] (anticancer drug) vs transplatin (inactive).
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