2011无机化学原理(英语)A试卷.doc

Term-end Examination of Inorganic Chemistry (A)(The first semester of the academic year of 2011-2012)No.1234567totalscoreReviewer 1： Reviewer 2： 1. Multiple-Choice Questions (30 marks)pointsReviewer(1) Which is an (are) element(s)? (i) CO, (ii) Co, (iii) C, (iv) Cl2, (v) CaC2(a) only iii (b) iii and iv (c) i and v (d) ii, iii and iv (e) ii and iii(2) Which is a molecular compound?(a) KI (b) Fe(NO3)2 (c) H2S (d) Na2S (e) O2(3) Which is the symbol for the SI base unit of mass(a) m; (b) g; (c) kg; (d) gr; (e) mol(4) Which term can correctly be applied to the reaction Zn(s) + 2HCl(aq) ZnCl2(aq) + H2(g)?(a) double replacement (b) neutralization (c) decomposition (d) combination (e) single replacement(5) Electricity is carried through a solution of an electrolyte by(a) electrons only (b) anions only (c) cations only (d) both cations and anions (e)both electrons and ions.(6注意) At the same temperature and pressure, molecules of which of the following have the highest average speed?(a) Br2(g) (b) Cl2(g) (c) F2(g) (d) I2(g)(7) Which of the four gases behaves ideally?(a) 1 (b) 2 (c) 3 (d) 4(8) Light is given off by a sodium vapor streetlight when (a) electrons move from a given energy level to a higher energy level(b) electrons are removed from atoms and cations are formed.(c) electrons move from a given energy level to a lower energy level(d) electrons are added to atoms and anions are formed(e) atoms combine to form molecules(9) The electrons in which subshell experience the largest effective nuclear charge in a multielectron? (a) 4s (b) 4p (c) 4d (d) 4f (e) All of the preceding experience the same effective nuclear charge in a multielectron atom.(10) Which element has the higest electron affinity ? (a) Ar (b) Br (c) Cl (d) S (e) Se(11) Arrange in order of decreasing radii（半径）: K Mg Mg2+ Na(a) Mg2+ Mg Na K (b) K Na Mg2+ Mg(c ) K Mg Na Mg2+ (d) K Na Mg Mg2+(12) Given the electronegativityes, C = 2.5, N = 3.1, S = 2.4, which Lewis structure is best for the thiocyanate ion?(13注意) How many unshared pairs of valence electrons are in the Lewis structure for AsCl3?(a) 1 (b) 3 (c) 10 (d) 13 (e) 26(14) In a molecule of XeF4, the arrangement of electron pairs would be described as(a) octahedral八面体 (b) square planar正方形 (c) square pyramidal正四面体 (d) tetrahedral四面体(e) trigonal bipyramidal 三角双锥(15注意) Which phase diagram corresponds to a substance that will sublime升华 rather than melt as it is heated at 1 atm?(16) Which mixture is most likely to be an ideal solution? (a) CH3CH2OH and CH3(CH2)3CH3 (b) CH3(CH2)3CH3 and CH3(CH2)4CH3(c) CH3CH2OH and H2O(d) NaOH and H2O(e) CH3(CH2)3CH3 and H2O(17) Arrange the bases ClCH2COO-, CH3COO- and FCH2COO- in order of increasing strength (a) ClCH2COO- FCH2COO- CH3COO- (b) CH3COO- ClCH2COO- FCH2COO- (c) FCH2COO- ClCH2COO- CH3COO- (d) CH3COO- FCH2COO- ClCH2COO- (e) FCH2COO- CH3COO- ClCH2COO-(18) Which can not act as a Lewis acid? (a) O2- (b) Al(OH)3 (c) CO2 (d) Fe3+ (e) BBr3 (19) If CaCl2 (aq) is electrolyzed电解 using inert惰性的 electrodes, (a) H2(g) is produced at the cathode阴极 and Cl2(g) at the anode. (b) Cl2(g) is produced at the cathode and H2(g) at the anode (c) H2(g) is produced at the cathode and O2(g) at the anode. (d) Ca(s) is produced at the cathode and Cl2(g) at the anode. (e) Cl2(g) is produced at the cathode and Ca(s) at the anode(20) Which lists only the species that have zero bond order? Li2, Ne2, C2+, He2, F22- (a) Ne2, He2, F22- (b) C2+, (c) Ne2, He2 (d) Li2, C2+ (e) Li2, He2(21) Which lists only the molecules given below that are paramagnetic顺磁性的? B2, C2, N2, O2, F2 (a) B2, N2 (b) B2, O2 (c) N2, O2 (d) N2, F2 (e) C2, O2, F2(22) NF3 is best described by assuming what kind of hybridization杂化 at the central atom? (a) sp (b) sp2 (c) sp3 (d) sp3d (e) sp3d2(23) The units of the rate constant for a second order reaction could be (a) M-1s-1 (b) M (c) Ms-1 (d) s-1 (e) M2s-1(24) Which graph depicts how the free energy of the system (Gsys) changes for the formation of HI?(25) A gaseous reaction takes place at constant volume and constant pressure in a cylinder shown here. Which of the following equations best describes the reaction? The initial初始 temperature (T1) is twice that of the final temperature (T2).(a) A + B C(b) AB C + D(c) A + B C + D(d) A + B 2C + D(26) The first law of thermodynamics, U = Q + W, can only be applied to (a) phase transition (b) physical change (c) chemical change (d) any change in a closed system (27) What type of lattice does CsCl belong to? (a) simple cubic (b) face-centered cubic (c) body-centered cubic (d) hexagonal closed packing (28) In which of the following solutions, the solubility of CaCO3 is largest?同离子效应(a) pure water (b) 0.1 M NaHCO3 (c) 0.1 M Na2CO3 (d) 0.1 M CaCl2 (e) 0.5 M KNO3(29) Which of the following sets of quantum numbers could represent the “last” electron added to complete the electron configuration for a ground state atom of Br according to the Aufbau Principle. n l ml ms (a) 4 0 0 -1/2 (b) 4 1 1 -1/2 (c) 3 1 1 -1/2 (d) 4 1 2 +1/2 (e) 4 2 1 -1/2(30) Which gas would be expected to behave most ideally? (a) F2 (b) Ne (c) PCl3 (d) NH3 (e) N22. Name the compounds according to the formulas given (10 marks)PointsReviewer(1) KCl(2) Na2SO410H2O(3) KH2PO4(4) N2O5(5) H3PO3 phosphite acid(6) H3O+ proton hytrate(7) HCl (aq)固体 气体 液体(8) Cu(ClO4)6H2O(9) Sn(10) Au3. Write out the English names of the following terms and symbols (10 marks)pointsReviewer(1) 有效数字(2) 质量摩尔浓度 物质的量浓度 质量分数 摩尔分数molalityAmount-of-substance concentrationMass fractionMole fraction(3) 真实气体 理想气Real gasIdeal gasdouble decomposition raection(4) 中和反应 分解反应 合成反应 复分解反应 置换反应Neutralization reaction decomposion reaction combination raction(5) 二元弱酸 一元弱酸Diprotic weak acidMonoprotic weak acid(6) 分子轨道 原子轨道 杂化轨道Molecular orbital atomic orbital hybrid orbital (7) 原子晶体 分子晶体 离子晶体Atomi crystalmolecular crystal ionic crystal (8) 价层电子对互斥理论 (VSEPR) valence-shell electron-pair repulsion(9) Kw RIon product of watergasconstant (10) fGo 4. Sketch the figures of the atomic orbitals原子轨道, hybrid orbitals杂交轨道 or molecular orbitals分子轨道 (+ and signs and the x, y, z axes should be labeled appropriately.) (15 marks)pointsReviewer(1) 3dxz (2) 3dz2(3) one set of sp hybrid orbitals杂交轨道(4) anti-bonding molecular orbital formed by two 2px atomic orbitals(5) anti-bonding molecular orbital formed by two 2py atomic orbitals.5. (10 marks)pointsReviewer(1) Construct the molecular orbital energy level diagram图表 for the hypothetical假设的 molecule - Xe2. (consider the s, p atomic orbitals only)(2) Predict if Xe2+ can exsist.成键电子数减去反键电子数再除以二(3) Calculate the bond orders for Xe2, Xe2+.6. (15 marks)pointsReviewer(1) The standard reduction potential for Hg22+/Hg at 298K () is 0.797 V. What is the ? (= 1.43 10-18)(2) SCE (saturated calomel electrode) is based on the redox electric coup