How many stereoisomers are possible when platinum is bonded to 3 ammine ligands and 1 chloro ligand in a square planar complex?
A)1
B)2
C)3
D)4
E)5

Question

Quizplus · Accepted Answer

The correct answer is A because the complex is square planar, which means that the ligands are arranged in a plane around the metal ion. The three ammine ligands are identical, so they cannot be distinguished from each other. The chloro ligand is different from the ammine ligands, so it can be distinguished from them. Therefore, there is only one possible stereoisomer.

How Many Stereoisomers Are Possible When Platinum Is Bonded to 3