104年hce_kmu 有機化學考古題

#1 Which of the following reagent(s) could be used to oxidize primary alcohol to al… ›

#2 What is the coupling constant ($J$ value) between H$_a$ and H$_b$ in the followi… ›

#3 Which of the following structures is chiral? ›

#4 Which of the following carbonyl compounds has the largest equilibrium constant f… ›

#5 The Hell-Volhard-Zelinsky reaction involves: ›

#6 Which compound has the lowest pKa? ›

#7 What is the major product, when 0.10 mol of ICH$_2$CH$_2$CH$_2$CH$_2$Cl reacts w… ›

#8 Which of the following is a meso compound? ›

#9 Which cycloalkane has the lowest heat of combustion per CH$_2$ group? ›

#10 How many alkanes of formula C$_7$H$_{16}$ possess a quaternary carbon atom? ›

#11 The graph below is a plot of the relative energies of the various conformations,… ›

#12 Chorismate mutase is an enzyme that catalyzes a pericyclic reaction that forms p… ›

#13 The C$_7$ compound which gives 3 signals in the broadband proton-decoupled $^{13}$… ›

#14 Select the structure of a compound C$_6$H$_{14}$ with a base peak at $m/z$ 43. ›

#15 What is the correct assignment of the names of the functional groups in the foll… ›

#16 Which sequence ranks the following carbonyl compounds in order of increasing rat… ›

#17 When H$_2$NCH$_2$CH$_2$CH$_2$CH$_2$COCH$_3$ is heated in the process of an acid… ›

#18 $p$-Methoxybenzaldehyde can be prepared from anisole using the Gatterman-Koch fo… ›

#19 Which of the following carbonyl compounds may be made from 1,3-dithiane? I. Meth… ›

#20 Predict the compound from the spectral data given. C$_9$H$_{10}$O$_2$: $^{13}$C… ›

#21 Which of the following pairs of structures are not resonance forms of the same c… ›

#22 Which of the following Newman projection represents the most stable $\textit{trans}-1,2-dimethylcyclohexane$… ›

#23 Which of the following structure represents ($S$)-L-alanine? ›

#24 Which of the following description(s) is(are) true for the following reaction? I… ›

#25 Disulfide linkages in proteins come from between: ›

#26 Which of the following represents the HOMO for the conjugated system in Leukotri… ›

#27 Which of the following is the most stable conformation for $\textit{cis}-4-methyl-2-pentene$… ›

#28 Which of the following acids has the lowest pKa value? ›

#29 Which compound would undergo S$_N$Ar reaction most rapidly with sodium methoxide… ›

#30 Which is the major product of the following reaction? ›

#31 Provide the structure of the missing starting material to complete the reaction. ›

#32 Which is the major product of the following reaction? ›

#33 Provide the structure of the missing starting material to complete the reaction. ›

#34 If one gauche interaction is 0.9 kcal/mol, what is the energy difference between… ›

#35 Which is the major product of the following reaction? ›

#36 Which is the major product of the following reaction? ›

#37 Provide the reagents to accomplish the synthesis shown below. ›

#38 Which is the major product of the following reaction sequence? ›

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

#40 The following products were obtained from the oxidative cleavage of a diene. Wha… ›

#41 Which of the following reactions would give a tertiary alcohol as a product? ›

#42 Which is the major product of the following reaction? ›

#43 Which is the major product of the following reaction? ›

#44 How to convert bromocyclohexane to $\textit{trans}-cyclohexane-1,2-diol$? ›

#45 Which is the major product of the following reaction? ›

#46 Which of the following statement(s) is(are) true for the following reaction? I.… ›

#47 Which is the major product of the following reaction? ›

#48 Which is the major product of the following reaction? ›

#49 Which of the following synthetic procedures would be employed most effectively t… ›

#50 Which is the major product of the following reaction? ›

#51 Which is the major product of the following reaction? ›

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

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

#54 Which reagent is most suitable for the following transformation? ›

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

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

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

#58 Which of the following reactions is most likely to give optically active product… ›

#59 What reagent(s) can be used for the following transformation? I. KMnO$_4$ II. Se… ›

#60 What reagent(s) can be used for the following transformation? I. OsO$_4$ II. CH$_3$… ›

#61 What sequence of reagents is needed to convert $t$-butylbenzene into 1-bromo-2-(… ›

#62 Determine the most likely structure for a compound (C$_6$H$_{10}$O) which is fou… ›

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

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

#65 What is the major product of the following reactions? ›

#66 What is the major product of the following reactions? ›

#67 Which reaction sequence is required to accomplish the following transformation? ›

#68 Which reaction sequence is required to accomplish the following transformation?… ›

#69 Which one of the following reactions would give the product as it is planned? ›

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

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

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

#73 Which of the following series of synthetic steps could be used to carry out the… ›

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

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

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

#77 How to prepare aspirin from phenol? ›

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

#79 7-Dehydrocholesterol, a steroid found in skin, is converted into vitamin D$_3$ b… ›

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

104年hce_kmu — 有機化學