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︰ 化工系 考試日期（年月日）︰ 102/06/19 考試時限（分鐘）： 110 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 choices questions(20%) 1.Which of the following is polydenate ligand? (a)SCN¯ (b)O=N-O¯ (c)C2O4 2¯,oxalate ion (d)EDTA 4¯ 2.Which of the following complexes of (Ti)3+ exhibits the longest wavelength absorption in the visible spectrum? (a)[TiCl6]3¯ (b)[Ti(H2O)6]3+ (c)[Ti(en)3]3+ (d)[Ti(CN)6]3¯ 3.Which of the following nuclides would tou expect to be radioactive? (a)60 (b)234 (c)131 (d)28 27 Co 90 Th 53 I 14 Si 4.What particle is emmited in the nuclear transmutation, 27 (α,?) 30 ? 13 Al 15 P (a)a positron (b)a proton (c)a β particle (d)a neutron 5.Of the following, which is the most damaging when ingested? (a)α emmiters (b)β emmiters (c)γ emmiters (d)positron emmiters 6.The isotope with the greatest nuclear binding energy per nucleon is: (a)3 (b)18 (c)56 (d)234 1 H 8 O 26 Fe 92 U 7.Which one of the following process can be done to shorten the half life of the radioactive decay of Sr-90? (a)adding certain catalyst to increase the decay rate constant, λ (b)heat it to 1000K (c)oxidize it to form SrO(s) (d)none of the above 8.Which of the following compounds show stereoisomerism? (a) CH3 | ／ ＼__CH3 \___/ (b) Cl ＝╱ ／ ＼ Br (c) ／＼／＼／ ∣ OH (d) H | C2H5—C＝O 9.Which of the following is a constituent of a dexoxyribonuclecic acid chain? (a)amino acid (b)ribose (c)pyrimidine base (d)phosphate group 10.Indicate the functional groups of the molecule ＼__ ／ ＼ HO ＝O ／ H (a)carboxyl group (b)carbonyl group (c)hydroxyl group (d)ketone group II. Problems(80%) 1.Briefly describe three properties of transition elements compare with main- group metals. (6%,23.3) 2.Draw plausible structures corresponding to each of the following names. (6%) (a)potassium hexacyanoferrate(II) (b)dichlorbis(ethylenediamine)cobalt(III) ion (c)Sketch a structure to present mer-[CoCl3(NH3)3] (p.1079) 3.By writing formulars or drawing structures related to any one of the following complexes, to illustrate (a)geometrical isomerism; (b)linkage isomerism; (c)optical isomerism; (d)coordination-sphere isomerism (or ionization isomerism). The complexes are: [CrSO4(NH3)5]Cl; [Pd(NH3)2(NO)2]; and [Co(en)2Cl2]+. (8%,p.1077) 4.For the complex ion [Co(en)3]3+ ,ethylenediamine (en) is a strong field ligand. (a)What's the coordination number of central metal ion? (b)What's the geometry of the complex ion? (c)Draw the crystal-field energy-level diagrams, and show the placement of electrons for the complex. (d)Is the complex diamagnetic or paramagnetic? (10%) 5.Write nuclear equations to represent (a)α-particle emmision by 222 , and 86 Rn (b)the production of 56 by bombardment of 59 with neutrons. Mn Co (4%,p.1115,1117) 6.C-14 is a radioactive isotope and used to determine the age of artifacts. C-14 is a β-emmiter and the half-life is 5730 years. The activity associated with 14 isotope that is equilibrium with its environment is about 15 disintegration per minute per gram (dis min¯1 g¯1) of carbon. (a)Write the complete nuclear reaction equation. (b)Calculate the decay constant of C-14 decay. (c)What is the age of a mummy, giving a 14 activity of 8.5 dis min¯g¯? C C (6%,p.1122) 7.Give each three of advantages and disadvantages of a nuclear power plant. (6%,p.1132) 8.Draw the structure for each of the following. (6%,26.25,26.37) (a)(Z)-1,3,5-tribromo-2-pentene (b)(S)-1-bromo-1-chlorobutane (c)2-hydroxy-1,2,3-propanetricarboxylic acid (citric acid, C6H8O7) 9.Construct two Newman projections of butane to show the conformations which are the lowest and highest in energy, respectively, when the molecule is viewed along C2-C3 bond. (4%,p.1158) 10.For the glyceraldehyde with the following dashed and solid wedge line structure. (a)Indicate the absolute configuration in R,S system. CHO | (b)Convert the structure to Fischer projection formula. H—C ◢ ╲ (c)Indicate the D,L configuration. HOH2C OH (d)Draw the mirror image of the given glyceraldehyde. (8%) 11.α-Amino acids are the monomers of protein (a)Give the general structure of α-amino acid. (b)At the isoelectric point, the amino acid is a zwitterion. Write its dipolar structure. (c)Other than glycine (H2NCH2CO2H), naturally occuring amino acids are optically active, mostly with an L-configuration. Sketch the Fischer projection of an L-amino acid. (d)Give the chemical reaction equation to show two acids can be joined to form a dipeptide. (8%,p.1280) 12.Fructose molecule may exist in straight-chain form (structure A) and cyclic form (structure B) as shown. CH2OH O | HO—CH2 ／ ＼ CH2—OH |=O |／ ＼ | HO—|—H C C H—|—OH |\ H OH /| H—|—OH H \| |/ OH | C——C CH2OH | | OH H Structure A Structure B (a)Indicate the chiral carbon(s) on structure A (b)Indicate the penultimate carbon on structure A (c)Circle the anomeric carbon on structure B (d)Is structure B an α-fructose or β-frucose? (e)Is this an aldose or ketose? (f)Is this a pentose or hexose (g)According to structure A, is this a D-fructose or L-fructose? (h)Can you distinguish a sugar that is dextrorotatory or levorotatory by absolute configurations? (8%,p.1275) --

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