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时间:2018-12-16
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1、一.绪论1.下列分子中碳原子杂化方式均为SP2的是()A.CH3CH≡CHB.CH2=C=CH2C.CH2=CHCH=CH2D.CH3CH2OCH3解答:C参考答案:C2.对于π键和σ键的描述下列错误的是()A.σ键是由两个成键原子轨道向着两个原子核间的连线发生最大重叠所形成的共价键B.π键是由两个相互平行的P轨道侧面相互重叠而成的键C.σ键和π键都可以单独存在于一共价键中。D.σ键关于轴对称,而π键关于平面对称解答:C参考答案:C3.根据当代有机的观点,有机物应该是()A.来自动植物的化合物B.来自于自然界的化合物C.人工
2、合成的化合物D.碳氢化合物及其衍生物解答:D参考答案:D4.环烷烃的环上碳原子是以哪种轨道成键的?()A.sp2杂化轨道B.s轨道C.p轨道D.sp3杂化轨道解答:D参考答案:D5.C—X键的极性和极化性大小次序是C—F>C—Cl>C—Br>C—I。A.正确B.错误解答:B参考答案:B6.氯原子即氯游离基。A.正确B.错误解答:A参考答案:A7.亲电试剂为Lewis碱。A.正确B.错误解答:B参考答案:B8.下列化合物偶极矩为零的是()A.CH3ClB.H2OC.CH3OHD.CH4解答:D参考答案:D9.在甲基碳正离子中,
3、碳原子的杂化类型是()。A.SP杂化B.SP2杂化C.SP3杂化D.不杂化解答:B参考答案:B10.下列基团中,不属于烃基的是()A.-CH(CH3)2B.-CH=CH2C.-OCH3D.PhCH2-解答:C参考答案:C二.烷烃和环烷烃1.Howmanypossibleproductscangetfrommonobrominationof3-ethyl-2-methylhexane?A.7B.6C.9D.8解答:D参考答案:D2.Givethemajorproductwithitsnamefrommonobaominatio
4、nof2-methylhexane?A.1-bromo-2-methyl-hexaneB.2-bromo-2-methyl-hexaneC.3-bromo-2-methyl-hexaneD.4-bromo-2-methyl-hexane解答:B参考答案:B3.Whichoneisthemoststable?A.(CH3)3C.B.CH3.C.CH3CH2.D.(CH3)2CH.解答:A参考答案:A4.Forthefreeradicalsubstitutionreactionofalkanes,whichhydrogenist
5、hemostactive?A.1ºB.2ºC.3ºD.4º解答:C参考答案:C5.CH3CH2CH2CH(CH3)CH2CH(CH2CH3)CH2CH2CH3,thecorrectmaneisA.4-ethyl-6-methylnonaneB.6-ethyl-4-methylnonaneC.5-methyl-3-propyloctaneD.3-propyl-5-methyloctane解答:A参考答案:A6.Whichonehasthehighestboilingpoint?A.n-hexaneB.2-methylpenta
6、neC.2,3-dimethylbutaneD.2,2-dimethylbutane解答:A参考答案:A7.Whichoneistheeasiesttohappenring-openreaction?A.cyclopropaneB.cyclobutaneC.cyclopentaneD.cyclohexane解答:A参考答案:A8.Whichnameiscorect?A.bicyclo[2.2]butaneB.bicyclo[2.2.0]butaneC.bicyclo[2.2.0]pentaneD.bicyclo[2.2.1]
7、heptane解答:C参考答案:D9.Theconformeroftrans-1,4-dimethylcyclohexaneisA.chair,aaB.chair,eeC.chair,aeD.boat,ee解答:B参考答案:B10.When1,1,2-trimethylcyclopropanereactwithHBr,themajorprodutisA.2-bromo-2,3-dimethylbutaneB.1-bromo-2,3-dimethylbutaneC.2-bromo-2-methylheptaneD.2-brom
8、o-2,4-dimethylpentane解答:A参考答案:A一.烯烃1.按照优先顺序,基团①-COOCH3;②–OH;③-NH3;④-CH2OH;⑤-C6H5的优先顺序为()A.①›②›③›④›⑤B.②›③›①›④›⑤C.②›③›④›⑤›①D.③›②›①›④›⑤解答:B参考答案:B2.不
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