67. About the atomic orbitals, which of the following statements is incorrect?(A) In a polyelectroni
68. NF3 has a bond angle of 102.5º, while PF3 has a bond angle of 96.3º. What is the best explanatio
70. Please balance the following equation (o, p, q, x, y, z are reaction coefficients).What is the s
38. 依下列三種弱酸及其 Ka 值，請排序各弱酸間酸強度(Ⅰ)和 pKa 值(Ⅱ)的順序(小→大)。(A) Ⅰ: HCN＜HOCl＜HNO2；Ⅱ: HNO2＜HOCl＜HCN(B) Ⅰ: HNO2＜
71. For the reaction A + B products, the following data were obtained: What is the experimental ra
40. 下列化合物的 IUPAC 命名為何？ (A) 5-ethyl-2,4,6-trimethyl-3-propyloctane (B) 4-ethyl-3,5,7-trimethyl-3-prop
72. In the blood of an adult human, there are approximately 2.64 ✖ 1013 red blood cells with a total
73. What is the rate constant for radioactive decay of 14CO2(g) at 0.1 atm? (The half-life of C-14 n
75. When the permanganate ion, MnO4ˉ, acts as an oxidizing agent which forms different products depe
41. 對於下列有機化合物之相關敘述，何者正確?(A) 乙二醇及丙三醇互為同分異構物(B) 分子式為 C7H8O 且屬於酚類物質的同分異構物有 4 種(C) 甲苯能使酸性過錳酸鉀溶液變色，說明甲基使苯
76. Alanine, H2NCH(CH3)CO2H, has Ka = 4.5 × 10–3and Kb = 7.4 × 10–5. Which species has the highest c
77. The rate of effusion of an unknown gas is measured and found to be 24 mL/min. Under the same con
78. An unknown concentration of NH3 solution is titrated by HCl solution. The color change for indic