The complex, [ Pt(Py)(NH _3) BrCl ] will have how many geometrical isomers ?

NEET 2011 Chemistry question

The complex, will have how many geometrical isomers ?

(1)3Correct
(2)4
(3)0
(4)2

Answer: (1)

Solution

is and the complex is square planar of the type with four different ligands (Py, , Br, Cl). Keeping one ligand, say a, fixed, the ligand trans to it can be b, c or d, giving

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Question ID VK-090812