[試題] 有機化學第一次小考 方俊民

[yuncheng42 (阿誠)]

課程名稱︰有機化學
課程性質︰必修
課程教師︰方俊民
開課系所︰醫技系、園藝系
考試時間︰2006.3.14

試題 :

1. Draw Lewis structures and denote formal charges.
  (1)                 (2)
        H                     O     H
         ＼                  ∣   ／
           C＝N＝N         H—C＝N
         ／                       ＼
        H                           H

2. By viewing from C1 to C2,
  (1) Draw two eclipsed and two staggered conformations of
      1,2-dichloroethane.
  (2) Which conformer has the highest energy (the least stable)?
  (3) Which conformer has the lowest energy (the most stable)?

3. (1) Draw cis-1,3-dichlorocyclohexane in its most stable chair
       conformation.
   (2) Draw trans-1,3-dichlorocyclohexane in its most stable chair
       conformation.
   (3) Indicate the chlorine atom that occupies the axial position.
   (4) Is the trans isomer more stable than the cis isomer? Why?

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