39. Which alcohol reacts most rapidly with the Lucas reagent? (A)benzyl alcohol (B)methanol (C) 2-pr
40. Which of the following oxidants will convert a primary alcohol to an aldehyde?1) sodium dichroma
43. Using a 60 MHz spectrometer, the protons in dichloromethane appear at 5.30 ppm. When the same sa
44. Which of the following is another name for cyclobutadiene? (A)[2]annulene (B)[4]annulene (C) [6]
45. In electrophilic aromatic substitution reactions a bromine substituent ________. (A)is a deactiv
47. Which of the following reactions is a redox reaction?(a) K2CrO4 + BaCl2 → BaCrO4 + 2KCl(b) Pb22+
46. Which element is oxidized in the reaction below?Fe(CO)5 (l) + 2HI (g) → Fe(CO)4I2 (s) + CO (g) +
49. Consider an electrochemical cell based on the reaction:2H+ (aq) + Sn (s) → Sn2+ (aq) + H2 (g) Wh
48. The purpose of the salt bridge in an electrochemical cell is to ________. (A)maintain electrical
53. When a system is at equilibrium, ________. (A)the reverse process is spontaneous but the forward
52. The first law of thermodynamics can be given as ________. (A)ΔE = q + w (B)(C) for any spontaneo
54. The second law of thermodynamics states that ________. (A)ΔE = q + w (B)ΔH°rxn = Σ nΔH°f (produc
59. What is meant by the salinity of seawater? (A)percent by mass of salt in seawater (B)mass in gra
58. Which one of the following substances found in the atmosphere will absorb radiation in the infra
60. Which one of the following pairs cannot be mixed together to form a buffer solution? (A)C5H5N, C