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試卷名稱：108年 - 臺北市立西松高級中學 108 學年度教師甄試化學科試題#76024
年份：108年
科目：教甄◆化學專業/化工科
16. Which of the following statements about the complex ion Co(en)2Cl2+
is true? (en = ethylenediamine,
NH2CH2CH2NH2)
(A) The complex ion contains Co(I).
(B) The complex ion exhibits cis and trans geometric isomers, but no optical isomers.
(C) The complex ion exhibits two geometric isomers (cis and trans) and two optical
isomers.
(D) Because en is a strong field ligand (large △o), the complex ion is paramagnetic.
(E) The geometric isomers of the complex ion have identical chemical properties.
