Chapter 8, Problem 8.82SP

The class of ions ${\text{PtX}}_{\text{4}}{}^{\text{2}-}$ , where X is a halogen, has a square planar geometry.
(a) Draw a structure for a ${\text{PtBr}}_{\text{2}}{\text{Cl}}_{\text{2}}{}^{\text{2}-}$ ion that has no dipole moment.
(b) Draw a structure for a ${\text{PtBr}}_{\text{2}}{\text{Cl}}_{\text{2}}{}^{\text{2}-}$ ion that has a dipole moment.