alleryNumber of geometric isomers of [Pt(NH3)2Cl2] (square planar):
A3
B4
C2 (cis and trans)
D1
Answer & Solution
Correct answer: C. 2 (cis and trans)
Square planar with two pairs of ligands gives 2 geometric isomers: cis (adjacent NH3) and trans (opposite NH3).
Cisplatin is the cis form, used as a chemotherapy drug
transplatin is biologically inactive.
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