Among (a)-(d), the complexes that can show geometrical isomerism are:
(a)
(b)
(c)
(d)

Question

Among (a)-(d), the complexes that can show geometrical isomerism are:
(a) 
(b) 
(c) 
(d)

Canvas Classes · Accepted Answer

Strategy:
 Geometrical isomerism arises when a complex can exist in different spatial arrangements of ligands around the central metal atom. Note that square planar Pt(II) is  or , and octahedral Pt(IV) is , etc.

Step 1: Evaluate each complex
- (a) : Square planar (). No geometrical isomers because switching any ligand yields the same structure.
- (b) : Octahedral (). No geometric isomers possible.
- (c) : Square planar (). It can have cis (where the two  are adjacent) and trans (where the two

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