Chemistry

Problem

Which of the following pairs of complexes are isomeric with each other but their aqueous solutions exhibit different molar conductivities? a.

[\text{PtCl}_2(\text{NH}_3)_4]\text{Br}_2

and

[\text{PtBr}_2(\text{NH}_3)_4]\text{Cl}_2

[\text{CoCl}_2(\text{NH}_3)_4]\text{NO}_2

and

[\text{CoCl}(\text{NO}_2)(\text{NH}_3)_4]\text{Cl}

[\text{Co}(\text{NO}_2)(\text{NH}_3)_5]\text{Cl}_2

and

[\text{Co}(\text{ONO})(\text{NH}_3)_5]\text{Cl}_2

[\text{CoBr}(\text{NH}_3)_5]\text{SO}_4

and

[\text{Co}(\text{SO}_4)(\text{NH}_3)_5]\text{Br}