阿摩線上測驗
14. 已知某種有機化合物之分子結構如下所示，其能夠與金屬離子形成螯合物。請問此有機化合物屬於下列何種配位基？
(A) 單牙配位基(Monodentate Ligand)
(B) 雙牙配位基(Bidentate ligand)
(C) 六牙配位基(Hexadentate ligand)
(D) 八牙配位基(Octadentate ligand)
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統計： A(2), B(32), C(154), D(10), E(0) #3430564
統計： A(2), B(32), C(154), D(10), E(0) #3430564
詳解 (共 3 筆)
後中123
#6860537
與114中山(73)相同
11. 在配位化學中，配位基 EDTA 是屬於下列何者?
(A) 單牙基(Mono-dantate ligand)
(B) 雙牙基(Bi-dantate ligand)
(C) 六牙基(Hexa-dantate ligand)
(D) 四牙基(Tetra-dantate ligand)
答案：C
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26. 最近部分食品使用工業級乙二胺四醋酸(簡稱 EDTA)，其為金屬離子良好的螯合劑(chelating agent)，化學結構如下， 其螯合位置為何？ㅤㅤ
(A) 1, 5, 6, 10
(B) 2, 3, 4, 7, 8, 9
(C) 1, 3, 5, 6, 8, 10
(D) 1, 2, 4, 5, 6, 7, 9, 10
答案：C
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72. Chelation therapy is known as the administration of chelating agents to eliminate toxic heavy metals from the body and has been practiced for many years in clinical toxicology. EDTA is used for intravenous injection as a detoxification treatment for heavy metal ions. Which of the following statement associated with EDTA is incorrect?
(A) EDTA is a hexadentate ligand.
(B) The full name of EDTA is ethylenediaminetetraacetate.
(C) A direct titration method is suitable for analytes that are precipitated in the absence of EDTA.
(D) EDTA is commonly used as an additive for collecting whole blood and plasma specimens.
(E) After complexation with Fe3+, the EDTA can be detected by UV-vis absorption spectroscopy.
答案：C
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