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110年 - 110台灣聯合大學系統_碩士班招生考試_化學類:無機化學#108077

科目：研究所、轉學考(插大)◆無機化學 | 年份：110年 | 選擇題數：50 | 申論題數：0

試卷資訊

所屬科目：研究所、轉學考(插大)◆無機化學

選擇題 (50)

1.Modem periodic table is arranged in a sequence based on the property of : (A) Electronegativity (B) Ionization Energy (C) Atomic Weight (D) Atomic number (E) Atomic radius

2.Which element is in liquid form at T = 50℃ (A) Antinomy (B) Gallium (C) Sulfur (D) Carbon (E) Sodium
3.What is the scientific contribution for the 2011 Nobel Laureate Dr. Dan Shechtman? (A) Discovered the icosahedral phase of quasiperiodic crystals (B) Pioneering work on graphenc. (C) Developed the cathode material of Li-ion battery (D) Discover the buckminsterfullerene (E) For the discovery of new superconducting materials
4.Which of the following molecules is the strongest Lewis acid? (A) NF3 (B) SbF5 (C) KCI (D) PCl3 (E) SnCl2

5.Identify the point group of(A) Td (B) (C)(D)(E)

6.Identify the point point group of (A) (B)(C)(D)
7. Which of the following molecule in liquid form exhibits paramagnetic property?(A) NH3 (B)CO2 (C)O2 (D)N2 (E) H2
8.The crystals of CeO2 exhibit a fluorite structure with a coordination number of 4 for the anion. (A)4 (B)6 (C)8 (D)10 (E) 12
9.Which of the following element/compound does NOT exhibit a layer structure in the solid state? (A) Cadmium Iodide (B) Titanium Dioxide (C) Graphite (D) Molybdenum disulfide (E) Boron nitride

10. Identify the crystal system with a ≠ b≠c, a = y =90°, B ＞90°. (A) Cubic (B) Monoclinic (C) Orthorhombic (D) Hexagonal (E) Triclinic

11. Identify the point group of Buckminsterfullerene. (A) (B) Td (C) I h(D) Oh (E)

12. How many symmetrically independent carbon atom(s) for a molecule? (A) 1 (B) 2 (C) 4 (D) 5 (E) 10

13. Identify the point group of bicyclo[2.2.2Joctane (A)C3 (B) (C) (D) (E)
14. How many peaks will you expected from the 'H NMR spectrum for the molecule bicyclo[2.2.2] octane? (A)1 (B) 2(C) 3 (D) 4 (E) 5

15. Identify the point group of XeF4 (A) C4 (B) (C) (D)(E)

16. Identify the irreducible representation of orbital. (A) (B)(C) (D)(E)

17. What is the order for the point group of XeF4 (A) 10 (B) 12 (C) 14 (D) 16 (E) 18
18. Which of the following element/compound is an p-type semiconductor? (A) Silicon Carbide (B) Diamond (C) Boron Nitride (D) Arsenic-doped Germanium (E) Gallium-doped Germanium

19. Which of the following species is paramagnetic in its ground state? (A) (B) CO (C) F2 (D) CN-(E) NO

20. How many vibration modes for [Fe(CO)5] molecule? (A) 12 (B) 14 (C) 16 (D) 27 (E) 40
21. Identify the following irreducible representation for CO stretches that is IR active and Raman inactive. (A) A1'(B)A2'(C)E' (D) A1" (E) A2"

22. How many unpaired electrons are there in a ion? (A) 2 (B) 3 (C) 4 (D) 5 (E) 6

23. Which of the following compounds is the strongest base in water? (A)B2O3(B) CO2(C)CI2O(D) K2O(E)
24. Which rotation symmetry operation is NOT allowed for the crystalline solid with 3D structure (A) 2 fold rotation (B) 3 fold rotation (C) 4 fold rotation (D) 5 fold rotation (E) 6 fold rotation
25. How many Nat cations in an unit cell of NaCl crystal structure? (A) 1(B) 2 (C) 3 (D)4 (E) 5
複選題
26. Given phosphine-I2 (Ar3P-I2) adducts and the correlations between their P-I and I-I bond lengths are shown below. How many of following statement(s) is/are correct?
 (i) Phosphines forms Lewis acid-base adducts with I2, in which phosphines are Lewis base and I2 is Lewis acidic.
 (ii) Generally, stronger phosphine donors result in the Ar3P-I2 adduct with shorter I-I bond length. (ili) The I-I bond lengthening is attributed to the donation from phosphine ligands into π* orbitals of I2.
 (iv) The I-I bond lengths of Ar3P-I2 adducts are longer than that of I2. 
(v) Steric hindrance caused by the ortho-substituents does not influence the magnitude of the P-I and I-I bond lengths.
   (A) 1 (B) 2 (C) 3(D) 4(E) 5
27. For ditungsten W2 molecule, what is the possible maximum bond order for it? (A) 3(B) 4 (C) 5(D) 6(E) 7
28. Following the Q27, what is the electron count for W in W2 molecule? (A) 10 (B) 12 (C) 14 (D) 16 (E) 18 
29. Assume that Hund's rule holds for all the systems considered in this problem, and L-S coupling is applicable for all systems. Which of the following has7S3 as its ground term? (A) V(B) Cr (C) Mn (D) Fe (E) Co

30. Which of the following ions or molecules do you expect to be paramagnetic? (A) [Fe(CO)5] (B) (C) [Cu(CH3CN)4)+ (D)(E)
複選題

31. Which of the following ions or molecules do you expect to be colorless? (A) [Fe(CO)5] (B) (C) [Cu(CH3CN)4]+ (D)(E)

32. What d orbital splitting diagram would you expect for Fe(CO)5 molecule? (A)(B)(C)(D)(E)
33. The electronic configuration of the boron atom is 1s22s22p1. You expect the electron probability about a boron atom in free space is found to be____________ (A) tetrahedral (B) spherically symmetric (C) dumbbell shaped (D) double-dumbbell shaped (E) octahedral

34. Which of the following ions or molecules do you expect to have the shortest S-N bond? (A) PhSO2(NH2) (B) (where N is the central atom) (C) S2N2 (with a square planar structure having only one type of S-N bond) (D) N2S (where N is the central atom) (E) NSF3 (where S is the central atom)

35. Both are very colorful. What type of electronic transitions is responsible for the colors of the complexes? (A) d-d transitions (B) Interligand electron transfer (C) Metal-metal-to-ligand charge transfer (D) Metal-to-ligand charge transfer (E) Ligand-to-metal charge transfer

36. The absorption spectra of (en = ethylenediamine) are shown in the figure below, along with a color wheel. How many of the following statement(s) is/are correct?
 (i) The dotted-curve belongs to
 (ii) The color of is orange
(iii) The color ofis purple
 (iv) Only exhibits absorption in near-infrared region
(v) Bothhave an inversion center and their absorption bands should be intense.

(A) 1(B) 2 (C) 3 (D) 4 (E) 5
37. Which of the following fragments do you expect to be isolable with CH.? (A) CpCu (Cp = C5H5) (B) Mn(CO)5 (C) Cr(CO)4 (D) Ni(CO)4 (E) CPCo

38. Which of the following ions do you expect to exhibit the greatest observed magnetic moment? (A) (B)(C)(D)(E)

39. Which ion is mostly kinetically labile? (A) (B)(C) (D)(E)

40. The reactions of (aq) ion with en (en = ethylenediamine) feature the equilibrium constants K shown below:

Why is the K3 significantly smaller than K1 and K2? (A) Jahn-Teller effect (B) Trans effect (C) Cotton effect (D) Hard-Soft Acid-Base Principle (E) 18-electron rule

41. For anion, which of the following statements is correct? (A) This species should be paramagnetic. (B) There is a metal-metal quintuple bond present in this species. (C) This ion adopts a staggered conformation. (D) The electron count for each Os is 18. (E) The oxidation state for Os is +4.
42. Me2CHMgBr reacts with Ir(I)CIL3 to give Ir(I)HL3. How many of following statement(s) is/are correct?
 (i) The reaction also produces propene as a by-product.
 (ii) The possible intermediate is Ir(CHMe2)L3.
(iii) β-H elimination likely involves in this process.
 (iv) The reaction of Me2CHMgBr with IrClL3 likely proceeds through associative mechanism. (A)0(B) 1 (C) 2(D) 3 (E) 4

43. The reactions of with NHs (reaction I) and of with [NO2]- (reaction II) followed by NH3 are ways of preparing: (A) I: trans-[PtCl2(NH3)2]； II: trans-(PtCl2(NH3)(NO2)]- (B)I: cis-[PtCl2(NH3)2]；II: trans-(PtCl2(NH3)(NO2)]- (C) I: cis-[PtCl2(NH3)2]； II: cis-[PtCl2(NH3)(NO2)]- (D) I: trans-[PtCl2(NH3)2]； II: cis-PtCl2(NH3)(NO2)] -

44. The kinetics of the isomerization of cis to trans-[Mo(CO)4(PEt3)2] can be followed by IR spectroscopy. Which of the following regions of the IR spectrum would you focus on to monitor the reaction? (A)800-1000   (B) 1400-1600 (C) 1800-2000  (D) 2400-2600   (E) 3000-3500  
45. Which experimental technique operates on the slowest timescale? (A) NMR spectroscopy (B) UV-vis spectroscopy (C) IR spectroscopy (D) Raman spectroscopy (E) Photonelectron spectroscopy

46. Which of the following complex has a highest oxidation state of metal? (A)(η6-C6H6)2Cr (B) Na2(Fe(CO)4] (C) Mn(CO)5Cl (D) Na[(η5-C5H5)Fe(CO)2] (E) Ni(CO)4
47. Ifcomplex [W(Cp)2(CO)2] follows 18e- rule. What is Hapticity of Cp? (A) 5 and 5 (B) 3 and 5 (C) 3 and 3 (D) 1 and 5 (E) 1 and 3
48. Which of the following is mostly stable? (A) [AuF2]- (B) [AuCl2]- (C) [AuBr2]- (D) [Aul2]-(E) [Au(CN)2]-

49. The intense red of an (shown below) solution is replaced by pale blue when cerium(IV) sulfate is added to it. Which of the following statements about this observation is correct? (A) The intense coloration o is due to inter-ligand charge transfer. (B) The electron count of is 20. (C) Addition of cerium(IV) sulfate causes the reduction of (D) The change of coloration upon the addition of cerium(IV) sulfate is due to lack of ligand to metal charge transfer transtions. (E) None of statements are correct.

50. Which of the following is closo? (A) C2B3H5(CoCp)2 (B) (C) (D) (E) P4

申論題 (0)