[試題] 100下佘瑞琳普通化學甲下期末考

看板NTU-Exam作者qaz516 (Meow)時間12年前 (2012/06/21 21:21)推噓6(6推 0噓 1→)

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課程名稱︰普通化學甲下課程性質︰必修課程教師︰佘瑞琳開課學院：開課系所︰農化、地質、大氣考試日期（年月日）︰ 101/6/20 考試時限（分鐘）： 120 mins 是否需發放獎勵金：是（如未明確表示，則不予發放）試題 : I. Multiple Choice Questions(30%) 1.The complex ion trans[Co(NH3)Cl2]+ absorbs at 680nm. Which color is this ion most likely to be?(有附圖，課本p.986) (a)red (b) orange (c)green (d)blue 2.Which of the following is chelating agent? (a)ethylenediamminetetraaccetate ion(EDTA 4¯) (b)SCN- (c)ethylenediamine(en) (d)NO2¯ 3.For the coordination compound, [Rh(en)2Cl2]NO3 (a)The oxidation number of the central metal is +6 (b)The coordination number of the complex is 6 (c)The geometry of the complex is square planar. (d)NO3¯ is the counter ion 4.Which of the following complex has linkage isomers? (a)[Co(en)3][CrCl5] (b)[Pt(NH3)2(NO2)2](square planar) (c)[V(en)2Cl2]+ (d)[Co(NH3)5SCN] 2+ 5.Which of the following exhibits the shortest λmax absorption wavelength in the visible spectrum? The spectrochemical series: Cl¯<F¯< H2O < NH3 < en < NO2¯< CN¯ (a)[Mn(en)3]2+ (b)[Mn(NO2)6]4¯ (c)[Mn(H2O)6]2+ (d)[MnF6]4¯ 6.Indicate which of the following compounds you would expect to be colorless? (a)KCr(SO4)2‧12H2O (b)CoSO4 (c)TiO2 (d)ZnCl2 7.Indicate the molecule that is a E-configuration(trans-) (a) (b) Cl F (c) (d) HO Cl CH3 ＼／＼／＝／ C＝C ＝＝ H3C／／＼ H3C／＼CH3 ／＼ Br H H 8.Which of the following is a constituent of a nucleic acid(DNA or RNA) chain? (a)N-containing base (b)glucose (c)glycerol (d)nucleotides 9.For the natural polymers, which of the following statement is true? (a)The monomers of starch are glucose and fructose (b)Fatty acids are the monomers of fats and oils (c)Protein is a condensation polymer of amino acids (d)α-Helix is one of the secondary structures of protein. 10.Which of the following substances show intermolecular hydrogen bonding? (a)propanone (b)phenol (c)butanal (d)methyl ethyl ether 11.Which of the following is a tertiary alcohol? (a)CH3CH2CH2OH (b)(CH3)3COH (c) (d) OCH3 ＿OH ∣ HO—＜／＼￣OH 12.Which of the following compounds have enantiomers? (a) OH (b) OH (c) NH2 (d) H HO ∣ ∣ HO │ OH ＼＿∠H O ／＼／＼＼／＼／＼／／| ＼／＼＝O Cl ∥ ∥ HO H ／﹨ ∕ O O H ＝ ∕ ﹨ HO OH 13.Which of the following is a representative of chlorofluorocarbon(CFC)? (a)CH2Cl2 (b)CCl3F (c)C2F4 (d)CF2Cl2 14.Which of the following molecule would undergo an addition reaction? (a)hexyne (b)cyclopentane (c)toluene (d)2-bromo-1-chloro-2-butene 15.The ibuprofen is a mdeicine that can relieve pain and reduce inflammation According to the structure. (a)There are two chiral carbons in the molecule. (b)The molecule has a carbonxyl functional group (c)The molecule is an (S)-ibuprofen (d)The stereoisomer of the molecule has same molecular formula and shows same kind of medical activity COOH CH3 ／＼∠H ∣ ∣○∣◣CH3 ／＼／＼／ CH3 CH2 II.Problems(70%) 1.For many years, styrene has been produced in a two-step process: (Chemistry: the central science p.772) Nowadays, the two-step process is replaces by a one-step process as follow: (p.773) (a)Why the process of styrene syntheses is important? (b)Indicate at least 4 points of shortcomings of the two-step process and benefits of the one-step process according to the 12 principles of green chemistry. 2.Write the formulas corresponding to each of the followinf names. (a)pentaamminechlorocobalt(III) chloride (b)ammonium tetrabromocuprate(II) (c)aquacyanobis(ethylenediamine)iron(III) nitrate 3.Draw the structures to show all the possible isomers of [Co(en)2Cl2]+ 4.Nickel(II) complexes in which the metal coordination number is 4 can have either square planar or tetrahedral geomerty. [NiCl4]2¯ is diamagnetic. One of these complexes is square planar and the other is tetrahedral. Sketch the relevant crystal field splitting diagrams in the text to determine which complex has which geometry. 5.The complex ion [MnCl6]4¯ contains five unpaired eletrons. (a)What's the oxidation of central metal ion? (b)Write the electron configurations of the free central metal ion. (c)Draw the crystal-field energy-level diagrams, and show the placement of electrons for the complex. (d)Is the ion high-spin or low-spin complex? (e)Is Cl¯ a strong -field ligand or a weak-field ligand? 6.(a)Write a condensed structural formula and the line-angle formula for n-butane (b)Construct two Newman projections to show the conformation that is the lowest an the other is the highest in energy when the molecule is viewed along C2-C3 axis. 7.(a)Sketch the D-glyceraldehyde(CH2OHCHOHCHO) with the Fischer projection formula. (b)Convert the structure to dashed and solid wedge line structure (c)Give the absolute configuration in R,S system (d)Draw the mirror image of the given glyceraldehyde 8.The straght-chain form of ribose is shown as follow: Indicate (a) the chiral carbon and (b) the penultimate carbon on structure (c)Is this a D-ribose or L-ribose? (d)Is this a ketose or aldose? (e)Is this a pentose or hexose? (f)Can you distinguish a sugar that is dextrorotatory or levorotatory by absolute configurations (such as R,S system)? H O ﹨∥ H ⊥OH H ⊥OH H ⊥OH ∣ CH2OH 9.Give three topics about general chemistry you learned from these two semesters that is impressive or interested to you. -- ※ 發信站: 批踢踢實業坊(ptt.cc) ◆ From: 140.112.237.80 ※ 編輯: qaz516 來自: 140.112.237.80 (06/21 21:22)

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