未分類

30. 右側反應可生成的主要產物為何？ (A) (B) (C) (D) (E)

42. A balloon filled with air is pulled into a tank of water at room temperature. As the balloon sin

21. 水分子(H2O)在 30℃下之蒸氣壓為 31.8 torr，在此溫度下液態水的密度為 0.99567 g/cm3，則在 30℃下，水蒸氣的密度為？(g/L)(A) 0.09 (B) 0.06

22. 以下那一種晶格不屬於立體晶系(Cubic)(A) Primitive (原始的)cell (B) Body-centered (體心)cell(C) Face-centered (面心)cel

23. 大氣中的臭氧(O3，ozone)與 O(g)反應分解為 O2(g)的步驟如下：慢快在此反應中那個分子是催化劑(A) NO(g) (B) NO2(g) (C) O2(g) (D) O(g)

24. 某一化合物之分子式為 。此化合物最多可以包含多少個雙鍵？(A) 9 (B) 5 (C) 6 (D) 4

36. There is a IR absorption at 1747 , what structure would you expect?(A) (B) (C) (D)

43. Ethanol of density ?? flows smoothly through a horizontal pipe that tapers in cross-sectionalare

25. 請問下列結構總共有幾個掌性中心(chiral center)？ (A) 2 個 (B) 3 個 (C) 4 個 (D) 5 個

26. 下列鹵化物何者適合與苯進行傅里德-克拉夫茨(Friedel–Crafts)反應？(A) (B) (C) (D)

37. Which is major product of following reaction ? (A) (B) (C) (D) (E)一律送分

44. An ideal monoatomic gas of one mole is at pressure P, volume V, and temperature T. The gasis hea

45. The figure shows a closed cycle for a gas. From c to b, 60 J is transferred from the gas as heat

46. A quantity of an ideal gas is compressed to half its initial volume. The process may be adiabati

47. An ideal parallel-plate capacitor connected to a battery of voltage V0, it has charge of magnitu

48. A group of identical capacitors is connected first in series and then in parallel. The combinedc

49. A cylinder contains n mol of helium gas (ideal monatomic gas) at a temperature of 300 K. Theuniv

27. 以下哪種化合物對於 SN1 機制具有最快的反應速率？(A) CH3CH2I (B) CH3I (C) (CH3)2CHI (D) (CH3)3CI

28. 下列選項何者為分子式 C4H7ClO 且 IR 光譜在 有明顯訊號的 1H NMR 圖譜？   (A) (B) (C) (D)

38. Identify the reagents of the following transformation: (A) 1) Excess NH3 2) LAH 3) H2O (B) 1) Ex

50. The switch is connected to position a for a long time interval as shown in the figure. At t = 0,

39. Predict the major product of the following reaction: (A) (B) (C) (D)

51. An infinite long wire is charged uniformly with line charge density λ. What is the electric fiel

29. 下列分子何者 pKa 最小？(A) (B) (C) (D)

40. Predict the major product of the following reaction: (A) (B) (C) (D)

 3690   首頁 上一頁 122 123 124 125 126 127 128 129 130 131 下一頁 尾頁