72. Which one of the following tetrahedral MXF- complexes has the strongest crystal field stabilization?
(A) FeCl₄^2-
(B) MnCl₄^2- 
(C) CoCl₄^2- 
(D) NiCI₄^2- 
(E) CuCI₄^2- 

23. 依據晶格場論(crystal field theory)，線性錯合物(linear complex，配位基處於 Z 軸)的五個 d 軌 域，下列何組的兩個 d 軌域能量相同？ (A) dx2 -y2 和 dz2 (B) dxy 和 dxz (C) dxy和 dx2 -y2 (D) dxy 和 dyz

25. 錯合物 trans-[Ni(NH3)2(CN)4] 2–的晶場圖(crystal field diagram)為下列何者？其中 CN–具有比 NH3 較強的 crystal field。 (A) (B) (C) (D)

16. The coordination geometry of Cr(NO)4 is_____  . (A) tetrahedral (B)trigonal pyramidal (C) see-saw (D) square planar (E) none of tiie above

1.請問下列錯合物的混成軌域和形狀之敘述何者正確? (A) Ni(CO)4，dsp2，平面四邊形 (B)[Cu(H2O)4]2+，sp3，四面體 (C)Zn(NH3)4Cl2，sp3d2，八面體 (D) Pt(NH3)4Cl4，dsp2，平面四邊形

2. Which of the following statements about ligands, d-block metals, and coordination complexes is correct? (A) The cyanate ion (OCN' can have three different Lewis structures, in which all the N atoms have the same formal charge. (B) Zinc is a component of vitamin, which is essential for the metabolism of carbohydrates, fats, and proteins. (C) [Co(NH3)4Cl2]+ has cis-trans isomers, and the cis isomer is optically active. (D) [Cr(en)(NH3)2l2]+(en = ethylenediamine) has three geometrical isomers. (E) The octahedral complexes are more appropriate than the octahedral complexes to be used to determine the field strength of a ligand.

83. What is the highest molecular orbital degeneracy of cyclic H3+? (A)0(B)1 (C)2 (D)3 (E)4

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.

46. [Co(CN)4]3–錯合物的分子形狀為平面四邊形(square planar)，請判斷中心離子未成對電子數目？ (A) 0 (B) 1 (C) 2 (D) 4

5. 下列哪一個化合物是順磁物質？ (A) O2 (B) CO (C) N2O4 (D) Ni(CO)4 (E) [Co(NH3)6]Cl3

72. A first-row transition metal complex [M(H2O)6]2+ has the ligand field stabilization energy of -O.6△o, M=________  . (A) Ti (B) V (C)Cr (D)Mn (E) none of the above

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