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研究所、轉學考(插大)-有機化學
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109年 - 109 國立台灣大學_碩士班招生考試：有機化學(A)#90650
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29. Which of the following is the LUMO of 1,3,5-hexatriene? (A)
(B)
(C)
(D)
(E)
其他申論題
25. Which type of reaction accounts for the oxidation of a primary alcohol to an aldehyde? (A) Substitution (B) Addition (C) Elimination (D) Rearrangement (E) Chain reaction
#371309
26. What type of compound would best fit the following IR spectrum? (A) Alkene (B) Alkyne (C) Phenol (D) Aldehyde (E) Amide
#371310
27. How many triplet signals are expected for the following compound in 1H NMR? (A)0 (B)1 (C)2 (D)3 (E)4
#371311
28. Which of the following conditions does not generate carbocation intermediates? (A) (B) (C) (D) (E)
#371312
30. Which of the following compounds is not considered as an antioxidant? (A) (B) (C) (D) (E)
#371314
(a) Give the IUPAC name of cumene.
#371315
(b) Draw the reaction mechanism (with curved arrows) for step I.
#371316
(c) Draw the reaction mechanism (with curved arrows) for step II.
#371317
(d) Draw the reaction mechanism (with curved arrows) for step III. (hint: a rearrangement that is associated with the leaving of a water molecule occurs)
#371318
(a) tautomerization
#371319
(B)
(C)
(D)
(E)
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(B) (C) (D) (E)