105年高雄醫學大學（後西醫）有機化學考古題

#1 Rank the following monomers in order of increasing reactivity toward cationic po… ›

#2 What product would be obtained for the following reaction? ›

#3 Which two have the same molecular geometry? I. $CO_2$ II. $NO_2^\ominus$ III. $PF_3$… ›

#4 Which nitrogen(s) have more basic? ›

#5 Rank the acidity of the following compounds. ›

#6 What is the order of increasing acidity for the following compounds? ›

#7 Which of these substances contains both covalent and ionic bonds? ›

#8 Choose the correct product of the following reaction? ›

#9 How many monochloro substituted products $C_6H_{13}Cl$ you might obtain by react… ›

#10 There are some isomers of 4-t-butylcyclhexane-1,3-diol. Which isomer reacts read… ›

#11 Which of the following correctly describes a molecule that is achiral? ›

#12 Which of the following pairs are enantiomers? ›

#13 Consider the two energy diagrams Fig. I and Fig. II given below. Which of the fo… ›

#14 Find the energy cost of a 1,3-diaxial interaction for the following compounds, w… ›

#15 Which of the following species is the least nucleophilic? ›

#16 What is the correct structure for $\alpha$-D-glucopyranose? ›

#17 Which of the following is a correct representation of the amino acid below? ›

#18 In humans, most steroids function as: ›

#19 What is the IUPAC name of the following compound? ›

#20 How many $E$ configuration are there in the following compounds? ›

#21 If silver nitrate is converted into silver nanoparticles, the most possible proc… ›

#22 A compound with the following molecular formula contains two double bonds. What… ›

#23 When butane undergoes free radical bromination, the product mixture contains 98… ›

#24 Which of the following is not a property of a protecting group? ›

#25 Which of the following carbonyl groups exhibits the highest wavenumber in infrar… ›

#26 Compound X has the molecular formula $C_{10}H_{12}O$. The IR spectrum of X has a… ›

#27 For the mass spectrum of compound Y, we found 3 lines in the molecular ion regio… ›

#28 Which of the following would not produce nuclear magnetic resonance? ›

#29 Which compounds have 3 signals in the $^{13}C$ NMR spectrum? ›

#30 Using a 300 MHz $^1H$ NMR instrument, if a H shows a triplet at $\delta$ 4.02, 4… ›

#31 Consider the reaction below, how many pairs of electrons are involved in this pe… ›

#32 Which of the following reaction types are pericyclic reactions? ›

#33 What is the order of decreasing reactivity towards nucleophilic acyl substitutio… ›

#34 Consider the elimination reaction: 2-bromohexane was treated with sodium methoxi… ›

#35 To answer the following question, consider the reaction below: The dehydration o… ›

#36 Which is addition reaction in the following reactions? ›

#37 Which of the following substrates will not form a Grignard reagent when treated… ›

#38 Which is the name reaction in the following reaction? ›

#39 What is the major product of the following reaction? ›

#40 Predict the structure of the expected product for the following reaction. ›

#41 What product would be obtained from the following reaction? ›

#42 Which structure for the compound A (formula $C_5H_8O$) that fit the following pr… ›

#43 Which of the following reactions is often called olefin metathesis? ›

#44 For the reaction shown below, the resulting stereochemistry of the expected prod… ›

#45 How would you prepare the following carbonyl compound from a nitrile? ›

#46 Which one is the reactant of the following reaction? ›

#47 Which is the best reagent for following reaction? ›

#48 An epoxide compound may undergo the ring-opening reaction with water to generate ›

#49 Show how you might use an annulation reaction to synthesize the following compou… ›

#50 Which of the following ethers can’t be prepared by a Williamson ether synthesis? ›

#51 Which of the following reagents is suitable for the following transformation？ I.… ›

#52 What product would be obtained from the following reaction? ›

#53 What is the product of this reaction? ›

#54 What is the major product would you obtain for the following reaction? ›

#55 Provide the structure of the major organic product in the reaction shown below. ›

#56 What product would be obtained for the following reaction? ›

#57 Please predict the product of the following reaction. ›

#58 Mescaline is a hallucinogenic alkaloid isolated from peyote cactus. Synthesize m… ›

#59 Which set of reagents will best convert 2,2-dimethylpropan-1-ol to 4,4-dimethylp… ›

#60 Compound A can make $Br_2/CCl_4$ become colorless. What is the structure of comp… ›

#61 The reaction of $Cl_2$ with a methyl radical has a positive $\Delta H^\circ$. Wh… ›

#62 Which structure corresponds to the trimer of $Me_2C=CH_2$ formed under condition… ›

#63 Remove a proton from the following structure to create the most reactive (least… ›

#64 The carbon marked by a dot (•) is $^{13}C$ isotope. Which structure below shows… ›

#65 Choose substituents X and Y (listed in order below) for the following compound s… ›

#66 Rank the degree of unsaturation in each of the following compounds. I. Cholester… ›

#67 This cyclic carbocation has two sets of degenerate pi-molecular orbitals. Choose… ›

#68 What product would be obtained for the following reaction? ›

#69 When 1-methyl-1-cyclohexene is respectively treated with the following reagent s… ›

#70 Predict the outcome of the following sequence of reactions. ›

#71 The following substrate is a starting material in the synthesis of compounds hav… ›

#72 Predict the structure of the hydrolysis product. ›

#73 In order to synthesize the final product shown below, predict when should a prot… ›

#74 Which of the following Diels-Alder reactions has the largest reaction rate const… ›

#75 What is the product of this reaction? ›

#76 What is the major product obtained from the following reaction sequence? ›

#77 What is the major product of the following reaction? ›

#78 Which of the following reactions is called Gabriel synthesis? ›

#79 What is the major product of the following triene to undergo the intramolecular… ›

#80 The following reaction involves an intramolecular Michael reaction followed by a… ›

105年高雄醫學大學（後西醫） — 有機化學