How many geometrical isomers are possible for [Pt(Py)(NH₃)(Br)(Cl)]? (a) 3 (b) 4 (c) 0 (d) 15

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Q. How many geometrical isomers are possible for [Pt(Py)(NH₃)(Br)(Cl)]?

(a) 3

(b) 4

(d) 15

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Step 1. [Pt(Py)(NH₃)(Br)(Cl)] is a square planar complex with four DIFFERENT monodentate ligands (pyridine, ammine, bromido, chlorido) -- the [MABCD] type from Section 5.5.2.

Step 2. For [MABCD], the section states that fixing any ONE ligand as a reference point, the remaining three ligands can be arranged around it in three genuinely different ways. …

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Q.How many geometrical isomers are possible for [Pt(Py)(NH₃)(Br)(Cl)]?

Concept understanding — Stereoisomerism in Coordination Compounds

Q.How many geometrical isomers are possible for [Pt(Py)(NH₃)(Br)(Cl)]?

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