课程名称︰普通化学乙下 课程性质︰必修 课程教师︰林英智 开课学院：理 开课系所︰化学系 考试日期（年月日）︰20100623 考试时限（分钟）：100 是否需发放奖励金：是 （如未明确表示，则不予发放） 试题 :A卷 1.i)Draw five d orbitals for transition metal, marking clearly the axis x,y,z and stressing their relative orientation with respect to the axis. ii)Explain why the degenerate energy level of five d orbitals was splitted into two states in an octahedral complex. 2.What is the crystal field stabilization energy of an octahedral complex of Fe(II). 3.For an octahedral complex Ma2b2cd, i)how many isomers are there where a,b,c are all monodentate ligand, ii)how many isomers are there if a2, and b2, are symmetrical bidentate ligand. 4.Calculate the binding e nergy in MeV per nucleon for the 3He nucleus. 5.For a parent element X with mass number A and proton number Z, what should be the daughter element formed if the parent element undergoes i)alpha decay, ii)electron capture, iii)electron emission, iv)positron emission. 6.Explain why the elements with mass number 4m+1 no longer exists in nature. 7.In a light water nuclear reactor for power production, we need to use boron and water. Give the reason why we need to use these materials. 8.Among fourteen nuetral, cationic and anionic organic cyclic compounds below, pick up compounds which are aromatic, explain why these are aromatic compounds. Hydride (H-) removal of C3H3 would yield the cationic compound C3H3+ and proton (H+) removal would generate the anion C3H3-. C3H4 C4H4 C5H6 C6H6 C7H8 C8H8 C10H8 C3H3+ C3H3- C5H5+ C5H5- C7H7+ C7H7- C10H10 9.For a reaction aA->products, [A]0=4.0M, and the first three successive half- lives are 48, 96, and 192 min. a)Calculate k(without units). b)Calculate [A] at t=81 min. 10.Monosaccharide carbohydrate can have a linear or a cyclic structure. Two typical carbohydrate molecules, glucose and fructose are depicted in the following diagram. The cyclic structure is generated by the addition of the OH group on the fifth carbon to the carbonyl group. Draw cyclic form of two molecules. Among six carbon atoms, how many and which of them are asymmetric carbon atoms in glucose. 11.Both starch and cellulose are polymers of glucose.What are the structure differences between these two polymers? 12.Based on the standard reduction potential data of the following half- reactions. MnO4- + 8H+ + 5e- -> Mn2+ + 4H2O E=1.51V MnO2 + 4H+ + 2e- -> Mn2+ + 2H2O E=1.21V Calculate E for the following half reaction and balance the half reaction. MnO4- + xH+ + ye- -> MnO2 + zH2O E= ? V What is the standard potential for the disproportionation of MnO2 to MnO4- and Mn2+? --

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