试题详情
已知:CH
3CH
2CH
2CH
2OH
![](https://math.21cnjy.com/MathMLToImage?mml=%3Cmath+xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F1998%2FMath%2FMathML%22%3E%3Cmrow%3E%3Cmover%3E%3Cmrow%3E%3Cmunder%3E%3Cmo%3E%E2%86%92%3C%2Fmo%3E%3Cmrow%3E%3Cmn%3E90%3C%2Fmn%3E%3Cmi%3E%EF%BD%9E%3C%2Fmi%3E%3Cmn%3E95%3C%2Fmn%3E%3Cmo%3E%E2%84%83%3C%2Fmo%3E%3C%2Fmrow%3E%3C%2Fmunder%3E%3C%2Fmrow%3E%3Cmrow%3E%3Cmi%3EN%3C%2Fmi%3E%3Cmsub%3E%3Cmi%3Ea%3C%2Fmi%3E%3Cmn%3E2%3C%2Fmn%3E%3C%2Fmsub%3E%3Cmi%3EC%3C%2Fmi%3E%3Cmsub%3E%3Cmi%3Er%3C%2Fmi%3E%3Cmn%3E2%3C%2Fmn%3E%3C%2Fmsub%3E%3Cmsub%3E%3Cmi%3EO%3C%2Fmi%3E%3Cmn%3E7%3C%2Fmn%3E%3C%2Fmsub%3E%3Cmo%3E%2F%3C%2Fmo%3E%3Cmi%3EH%3C%2Fmi%3E%3Cmo%3E%2B%3C%2Fmo%3E%3C%2Fmrow%3E%3C%2Fmover%3E%3C%2Fmrow%3E%3C%2Fmath%3E)
CH
3CH
2CH
2CHO
利用如图装置用正丁醇合成正丁醛.相关数据如表:
物质 | 沸点/℃ | 密度/(g•cm﹣3) | 水中溶解性 |
正丁醇 | 117.2 | 0.8109 | 微溶 |
正丁醛 | 75.7 | 0.8017 | 微溶 |
下列说法中,不正确的是( )
![](http://tikupic.21cnjy.com/f2/e2/f2e236c0ca719190782637cd23202173.png)
- A、为防止产物进一步氧化,应将酸化的Na2Cr2O7溶液逐滴加入正丁醇中
- B、当温度计1示数为90~95℃,温度计2示数在76℃左右时,收集产物
- C、反应结束,将馏出物倒入分液漏斗中,分去水层,粗正丁醛从分液漏斗上口倒出
- D、向获得的粗正丁醛中加入少量金属钠,检验其中是否含有正丁醇
知识点
参考答案