(2012)按系统命名法,下列有机化合物命名正确的是:()
按系统命名法,下列有机化合物命名正确的是:()
下图中属于直立式造型的是哪一个? <img class="\'import-img\'/" src="\'https://exam-online.oss-cn-beijing.aliyuncs.com/1468625747.41未命名_meitu_1.jpg\'"/>
不用查表,下列化合物按沸点降低的次序排列( )。 a.CH<sub>3</sub>CH<sub>2</sub>CH<sub>2</sub>Cl b.n-C<sub>4</sub>H<sub>9</sub>OH c.<img src='https://img2.soutiyun.com/latex/latex.action' />d.<img src='https://img2.soutiyun.com/latex/latex.action' />
用少于或等于3个碳的烃合成下列化合物。<img src='https://img2.soutiyun.com/ask/2019-12-31/946621786027764.png' />
下列化合物中带标志质子的化学位移归属正确的应为( )<img src='https://img2.soutiyun.com/ask/2019-12-11/944951185240568.png' />
下图为人体血糖调节模式图,下列叙述正确的是()。<img src='https://img2.soutiyun.com/ask/2019-03-06/92072993635962.png' />
在<img src='https://img2.soutiyun.com/ask/2020-07-28/964798262295166.png' />反应中,下列说法正确的是()
结合下列图片,以下说法正确的是()<img src='https://img2.soutiyun.com/shangxueba/ask/17940001-17943000/17940035/2014060716473534125.jpg' />
如图,下列叙述正确的是()。<img src='https://img2.soutiyun.com/shangxueba/ask/17499001-17502000/17500915/201602281442146984.jpg' />
下列各化合物中,既能溶于酸又能溶于碱的为()。<img src='https://img2.soutiyun.com/shangxueba/ask/68916001-68919000/68916735/964792101435785.png' />
下列化合物中不能进行缩聚反应的是()。<img src='https://img2.soutiyun.com/ask/uploadfile/4104001-4107000/b22d3af414261ba3ba616acb14937534.jpg' />
下列化合物中,与丙烯醛发生Diels-Alder反应最活泼的是()。<img src='https://img2.soutiyun.com/shangxueba/ask/17850001-17853000/17851740/2016032015121758843.jpg' />
传声器的指向性图的正确命名顺序是()。<img src='https://img2.soutiyun.com/ask/uploadfile/10332001-10335000/64cd474d8404d393855cc3f145909092.jpg' />
下列化合物不能与<img src='https://img2.soutiyun.com/shangxueba/ask/17844001-17847000/17845710/2016032015180822263.jpg' />发生反应的是()。<img src='https://img2.soutiyun.com/shangxueba/ask/17844001-17847000/17845710/2016032015181816392.jpg' />
对于骨型深覆<img src='https://img2.soutiyun.com/shangxueba/ask/17574001-17577000/17574873/2015093009381836270.jpg' />,下列说法不正确的是()
下列化合物具有对称中心的是()。<img src='https://img2.soutiyun.com/shangxueba/ask/17841001-17844000/17842509/2016032015265652414.jpg' />
在下列各对化合物中,不为官能团异构体的是()。<img src='https://img2.soutiyun.com/shangxueba/ask/17847001-17850000/17847643/2016032015051956054.jpg' />
下图所示复合管中,下列正确的是()。<img src='https://img2.soutiyun.com/1/2021-04-06/986571610134523.png' />
下列化合物是内消旋体的是()。<img src='https://img2.soutiyun.com/shangxueba/ask/17844001-17847000/17846852/2016032016283169624.jpg' />
下列化合物中,有手性的是()。<img src='https://img2.soutiyun.com/shangxueba/ask/17850001-17853000/17852141/2016032016260810267.jpg' />
下列规划图例要素中,图例和注释名称对应不正确的是()<img src='https://img2.soutiyun.com/shangxueba/ask/17934001-17937000/17935057/2015091616421074820.jpg' /><img src='https://img2.soutiyun.com/shangxueba/ask/17934001-17937000/17935057/2015091616422640392.jpg' />
化合物<img src='https://img2.soutiyun.com/shangxueba/ask/2021-08/13/2/20210813144743341.jpg' />的正确名称是()
下列烷烃命名正确的是()<img src='https://img.soutiyun.com/ask/zq/20210629/99380869303953.png' />