29. Given that :

 Which of the amino acids has the lowest isoelectric point?
(A) glutamic acid
(B) glycine
(C) lysine
(D) serine
(E) threonine 

30. According to the crystal field theory, is  a low-spin or high-spin complex cation? How many unpaired d-electrons are expected for it? (A) low-spin, 0 unpaired electron (B) low-spin, 1 unpaired electron (C) low-spin, 3 unpaired electrons (D) high-spin, 3 unpaired electrons (E) high-spin, 5 unpaired electrons

31. Which of the following reactions involving magnesium is incorrect? (A) MgC2 + H2O → MgO + C + H2 (B) Mg3N2 + 6 H2O → 3 Mg(OH)2 + 2 NH3 (C) MgH2+2 H2O → Mg(OH)2 + 2 H2 (D) at high temperature, 3 Mg + N2 → Mg3N2 (E) at high temperature, 3 Mg + 2 NH3 → Mg3N2 + 3 H2

32. The rate law for the following mechanism is (A) reaction rate =(B) reaction rate = (C) reaction rate = (D) reaction rate = (E) reaction rate =

33. Which of the following systematic names of coordination compounds is correct? (A) Ag(NH3)2[Ag(CN)2] : diamminesilver(I) dicyanoargentate(I) (B) Fe(CO)s: pentacarbonmonoxoiron(0) (C)  : dibromodi(ethylenediamine)cobalt(III) ion (D) [Cr(H2O)4Cl2]C1·2H2O : tetraaquadichlorochromium(III) chloride diaqua (E) : trichloroammineplatinum(II) ion

34. The formula of neoprene, one of the synthesis rubber families, is   What is the name of the monomer used to produce neoprene in industry? (A) 2-chloro-1-butene (B) 2-chloro-2-butyne (C) 1,2-dichloro-1-butene (D) 2-chloro-1,3-butadiene (E) ethyne and chloroethene 

35. The piranha solution is a strong oxidizing agent used to decompose organic matters. It can also add hydroxyl groups to hydrophobic surface and make them hydrophilic. What is the composition of the piranha solution? (A) HCl and HNO3 (B) H2O2 and H2SO4 (C) H2O2 and NaBH4 (D) KMnO4 and NaOH (E) HCI and HAuCl4

36. ABS is a very common thermoplastic plastic in life. Which of the following statements about ABS is incorrect? (A) ABS is a copolymer. (B) The letter "S" of ABS is styrene monomer. (C) The letter “A” of ABS is acrylonitrile monomer. (D) High temperature makes ABS irreversibly hardening. (E) ABS offer poor resistance to many kinds of solvents.

37. When 0.02 mole of NaF is added into the 2.0 L, 0.01 M CaCl2 solution at 27 °C. It makes the osmotic pressure of this solution (A) increasing by 12 Pa (B) increasing by 0.12 atm (C) increasing by 0.49 atm (D) decreasing by 0.25 atm (E) no change

複選題38. The organic compounds with the formula C4H8O (A) have no optical isomer (B) have no geometric isomer (C) can be an unsaturated cyclic ether (D) can be a tertiary alcohol (E) can be a saturated secondary alcohol

39. The equilibrium constant K measurements at several different temperatures for a reaction showed the relationship between K and T (in Kelvin): lnK = -1.8 +610×(1/T). Which of the followings is true? (A) This reaction is endothermic (B) The ΔG° of this reaction is +(C) The ΔS° of this reaction is -. (D) The ΔH° of this reaction is . (E) The relationship should be lnK = x/T. The intercept -1.8 must be experimental error. 

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