According to Werner's coordination theory, which of the following empirical formulations of platinum(IV) chloride with ammonia will exhibit the lowest molar conductance in aqueous solution and fail to give a white precipitate with excess AgNO₃ ?

Step-by-step solution

According to Werner's coordination theory, the secondary valency (coordination number) of Pt(IV) is 6. The given empirical formulas can be represented as coordination complexes by satisfying the secondary valency of 6 with ammonia molecules and chloride ions: PtCl₄ 6NH₃ [ Pt(NH₃)₆ ]Cl₄ (yields 5 ions, 4 precipitable Cl^- ions) PtCl₄ 5NH₃ [ Pt(NH₃)₅Cl ]Cl₃ (yields 4 ions, 3 precipitable Cl^- ions) PtCl₄ 4NH₃ [ Pt(NH₃)₄Cl₂ ]Cl₂ (yields 3 ions, 2 precipitable Cl^- ions) PtCl₄ 2NH₃ [ Pt(NH₃)₂Cl₄ ] (yields 0 ions, 0 pre