推 abacada :開給那個系的? @@ 10/30 20:05
課程名稱︰有機化學乙上
課程性質︰必修
課程教師︰羅禮強
開課學院：
開課系所︰
考試日期（年月日）︰98/10/22
考試時限（分鐘）：120
是否需發放獎勵金：是，謝謝
（如未明確表示，則不予發放）
試題 :
1.Classify each of the following compounds.(4 points)
a) b) c) d)
O O H2 O
∥ ∥ ︱ ∥
CH3-C-N-CH3 CH3-C-OH CH3-C-C-C-H H3C-C≡C-CH3
︱ ︱
H H2
2.Complete the Lewis structure for the following compounds and ions,and assign
formal charge as appropriate. The connectivity of major atoms in each structure
is given below the formula.(16points)
a) O3 b)CH2N(CH3)2+ c)HC2- d)CH3OSO3-
C O
︱ │
O-O-O C-N-C H-C-C C-O-S-O
│
O
3.Sulfur dioxide(SO2) has a dipole moment(μ=1.63D);on the other hand ,carbon
dioxide (CO2)has no dipole moment(μ=0D) . What is the geometry of SO2
predicted by VSEPR theory? Show the direction of the dipole moment of SO2
(5points)
4.Name the following groups;(a)-OH (b) C=O (c)-Br (d)-NH2 (e)-CH(CH3)CH2CH3
(f)-C6H5 (g)-CH2CH=CH2 (h)-CH2- (i) -CH(CH3)2 (18points)
5.Supply the curved arrows necessary for the following reactions and show all
nonbonding electrons pairs . (6points)
a) CH3OCH3+HI →CH3O(+)CH3 +I(-)
H
b)CH2=CH2 +HCl → CH2(+)CH3 +Cl(-)
6.The pKa of acetone(CH3COCH3)is 19.2:Draw the structure of the conjugate base
of acetone and any other contribruting resonance forms, including all the
nonbonding electron pairs(4 points)
7.Name the following compounds .(14points)
共七題，恕無法以ptt呈現
8.Briefly describe how you could experimentally determine the methylpropane
is more stable than butane (5points)
9.Draw the bond-line formula for all the alcohols with molecular formula
C5H12O and their names
10.(a)Draw the two possible chair conformations for methylcyclohexane
(b)Which one is more stable(Hint:use Newman projections to explain your answer)
(c)Suppose the free-energy difference between these two conformations is 7.6
kJ/mol at 25℃. What is the percentage of the major conformation in
equilibrium.(16 points)
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