Question

Which of the following species have geometric isomers: [Fe(en)Cl4]-, [Fe(en)2Cl2]+, and [Fe(en)2BrCl]+?
A.[Fe(en)Cl4]- only
B.[Fe(en)2Cl2]+ only
C.[Fe(en)2BrCl]+ only
D.[Fe(en)2Cl2]+ and [Fe(en)2BrCl]+
E.[Fe(en)Cl4]-, [Fe(en)2Cl2]+, and [Fe(en)2BrCl]+

Answer

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