Choose the Complex That You Predict Will Absorb the Shortest

question 112

Essay

Choose the complex that you predict will absorb the shortest wavelengths of light from each pair,and briefly explain your choice.
(1)Cr(H₂O)₆³⁺ or Cr(NH₃)₆³⁺
(2)NiCl₄^2- or NiI₄^2-
(3)Co(CN)₆^4- or Co(CN)₆^3-
(3)NiEDTA^2- or NiBr₄^2-

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