配套习题- 混合物的分离和提纯——萃取原理 -【青果学院】

1/5单选题

难度：

1.下列物质在水中可以分层，且下层是水的是

A	苯
B	硝基苯
C	溴苯
D	四氯化碳

正确答案：QQ==

6Iuv77yM56Gd5Z+66Iuv77yM5rq06Iuv77yM5Zub5rCv5YyW56Kz5Z2H5LiN5rq25LqO5rC077yM5YW25Lit6Iuv55qE5a+G5bqm5q+U5rC05bCP77yM56Gd5Z+66Iuv77yM5rq06Iuv77yM5Zub5rCv5YyW56Kz55qE5a+G5bqm5q+U5rC05aSn77yOPGJyPuaVhemAiUHvvI4=

2/5单选题

难度：

2.欲萃取碘水中的I₂，不能作为萃取剂的是

A	酒精
B	苯
C	CCl₄
D	汽油

正确答案：QQ==

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

3/5单选题

难度：

3.有关萃取的说法错误的是

A	溶质在萃取剂中溶解度更大
B	可用CCl₄提取溴水中的溴单质，溶液分层后溴在下层
C	酒精不能用于提取碘水中的碘单质
D	萃取后一般要用漏斗进行分液的分离操作

正确答案：RA==

Qe+8jua6tui0qOWcqOiQg+WPluWJguS4reeahOa6tuino+W6puavlOWcqOWOn+a6tuWJguS4reimgeWkp++8jOaVhUHmraPnoa7vvJsgPGJyPkLvvI7lm5vmsK/ljJbnorPnmoTlr4bluqbmr5TmsLTnmoTlpKfvvIzmurbmtrLliIblsYLlkI7murTlnKjkuIvlsYLvvIzmlYVC5q2j56Gu77ybPGJyPkPvvI7phZLnsr7lkozmsLTkupLmurbvvIzkuI3og73lgZrokIPlj5bliYLvvIzmlYVD5q2j56Gu77ybPGJyPkTvvI7liIbmtrLlupTnlKjliIbmtrLmvI/mlpfvvIzkuI3og73nlKjmma7pgJrmvI/mlpfvvIzmlYVE6ZSZ6K+v77yOPGJyPuaVhemAiUTvvI4=

4/5单选题

难度：

4.选择一种溶剂将碘水中的碘萃取出来，这种溶剂应具备的性质是

A	不溶于水，且密度必须比水大
B	不溶于水，且密度必须比水小
C	不溶于水，且比水更容易使碘溶解
D	易溶于水，且不能与碘发生化学反应

正确答案：Qw==

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

5/5单选题

难度：

5.在盛有碘水的试管中，加入少量CCl₄后振荡，静置片刻后

A	整个溶液变紫色
B	整溶液变为棕黄色
C	上层为无色下层为紫红色
D	下层无色上层紫红色

正确答案：Qw==

56KY55qE5Zub5rCv5YyW56Kz5rq25ray5Zyo5LiL5bGC77yM5Li657Sr57qi6Imy77yM5LiK5bGC5Li65peg6Imy55qE5rC044CC5Zug5q2kQ+mhueato+ehruOAgg==