試題詳解

82. Four solutions have violet, blue, yellow and green color, respectively. Each solution contains the following compounds: I. [Cr(H₂O)₄Cl₂]Cl, II. [Cr(H₂O)₅Cl]Cl₂, III. [Cr(H₂O)₆]Cl₃, IV. [Cr(ethylenediamine)₃]Cl₃. Please use the following table to predict the color for each solution.
(A) I: green; II: blue; III: violet; IV: yellow
(B) I: yellow; II: violet; III: blue; IV: green
(C) I: green; II: yellow; III: violet; IV: blue
(D) I: green; II: violet; III: blue; IV: yellow
(E) I: violet; II: blue; III: green; IV: yellow