15. Which is the major product of the following reaction?

(A)
(B)
(C)
(D)

16. Among the following solvents, which is the best for the reaction of I-bromohexane with sodium azide?(A)dimethyIsulfoxide (B) methanol (C) hexane(D)toluene

17. Which of the following transformations might be used to synthesize the following substance?(A)(B)(C)(D)None of abover answers

18. What is most likely to be the final product when cyclopentene is subjected to the following reaction scquence: (I) H+/H2O；(II) PCC；(IIl) piperidine； (IV) NaBH3CN?(A)(B)(C)(D)

19. How many of the following transformations is/are likely to be practical?   (A)0 (B)1 (C)2 (D)3

20. How many of the following statements regarding bromination (Br2/FeBt3) of toluene is/are correct? ( A ) Reaction begins with the complexation of bromine with the FeBr3 ( B ) Formation of Br+ ion is not the rate determining step ( C ) Addition of Br+ to toluene to form the arenium ion is the rate determining step ( D ) 4-Bromotoluene is formed by losing a hydride from the arenium ion (A)1 (B)2 (C)3 (D)4

21. How many of the following reaction sequences can properly achieve the transformation below? (I) (i) CH3COCI/AICI3； (ii) HNO2/H2SO4；(iii) CH3MgBr； (iv) H3O+/heat (Ⅱ) (i) CH3COC/AICl3； (ii) CH3MgBr, Et2O； (ii) H3O+/heat, (iv) HNO3/H2 SO4(Ⅲ) (i) CH3COCV/AICI3； (ii) HNO3/H2SO4； (ili) CH2-PPh3 (A)0(B)1 (C)2 (D)3

22. Which of the following is not prominent in the mass spectum of 2-methy1-2-butanol? (A)M-12 (B) M-15 (C)M-I8 (D) M-29

23. Which of the following compound is the most reactive toward nucleophilic ar sromatic substitution? (A) 4-fluoro-1,2-dinitrobenzene (B)1-luoro-2,4-dinitrobenzene (C) 2-luoronitrobenzne (D) no reaction for all above answers

24. Which of the follwoing molecules would not be considered a bicyclic molecule?(A)(B)(C)(D)

25. Calculate the degrees of unsaturation for a molecule with the molecular formula. (A)4 (B)5 (C)6 (D)7 

115年 - [無官方正解]115 台灣聯合大學系統_碩士班招生考試_化學類：有機化學#140181

115年 - [無官方正解]115 國立臺灣大學_ 碩士班招生考試試題：有機化學(A)#137731

114年 - 114 台灣聯合大學系統_碩士班招生考試_化學類：有機化學#127002

113年 - 113 台灣聯合大學系統_碩士班招生考試試題_化學類：有機化學#122395

112年 - 112 台灣聯合大學系統_ 碩士班招生考試試題：有機化學#138486

112年 - 112-2 嘉南藥理大學_轉系招生藥學系考試試題_四技一年級：有機化學#119239

111年 - [無官方正解]111台灣聯合大學系統_ 碩士班招生考試試題：有機化學#138494

110年 - 110-2 嘉南藥理大學_轉系招生藥學系考試試題：有機化學#120872

110年 - 110 國立臺北科技大學_碩士班招生考試_分子科學與工程系有機高分子碩士班(甲組)：有機化學#110883

110年 - 110 國立清華大學碩士班考試入學試題_部分研究所:有機化學#104992