中学生网络课堂本课配套习题挑战模式1/5
单选题
难度系数：
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 |
一次做对，真牛！
+5奖励规则>
- 提示1：5qC55o2u6aKY5bmy55qE6KaB5rGC77yM5omA6YCJ5oup55qE6YCJ6aG55bqU6K+l5LiN5rq25LqO5rC077yM5bm25LiU5a+G5bqm5q+U5rC05bCP44CC
- 答案：QQ==
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本课配套习题挑战模式2/5
单选题
难度系数：
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 |
一次做对，真牛！
+5奖励规则>
- 提示1：5L2c5Li66JCD5Y+W5YmC6ZyA6KaB55qE5p2h5Lu25piv77yaMeOAgeaJgOaPkOe6r+eahOeJqei0qOWcqOiQg+WPluWJguS4reeahOa6tuino+W6puWkp+S6juWcqOWOn+a6tua2suS4reeahOa6tuino+W6puOAgjLjgIHokIPlj5bliYLkuI7ljp/murbliYLkupLkuI3nm7jmurbjgII=
- 答案：QQ==
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
本课配套习题挑战模式3/5
单选题
难度系数：
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 |
一次做对，真牛！
+5奖励规则>
- 提示1：5L2c5Li66JCD5Y+W5YmC6ZyA6KaB55qE5p2h5Lu25piv77yaMeOAgeaJgOaPkOe6r+eahOeJqei0qOWcqOiQg+WPluWJguS4reeahOa6tuino+W6puWkp+S6juWcqOWOn+a6tua2suS4reeahOa6tuino+W6puOAgjLjgIHokIPlj5bliYLkuI7ljp/murbliYLkupLkuI3nm7jmurbjgII=
- 答案：RA==
Qe+8jua6tui0qOWcqOiQg+WPluWJguS4reeahOa6tuino+W6puavlOWcqOWOn+a6tuWJguS4reimgeWkp++8jOaVhUHmraPnoa7vvJsgPGJyPkLvvI7lm5vmsK/ljJbnorPnmoTlr4bluqbmr5TmsLTnmoTlpKfvvIzmurbmtrLliIblsYLlkI7murTlnKjkuIvlsYLvvIzmlYVC5q2j56Gu77ybPGJyPkPvvI7phZLnsr7lkozmsLTkupLmurbvvIzkuI3og73lgZrokIPlj5bliYLvvIzmlYVD5q2j56Gu77ybPGJyPkTvvI7liIbmtrLlupTnlKjliIbmtrLmvI/mlpfvvIzkuI3og73nlKjmma7pgJrmvI/mlpfvvIzmlYVE6ZSZ6K+v77yOPGJyPuaVhemAiUTvvI4=
本课配套习题挑战模式4/5
单选题
难度系数：
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 |
一次做对，真牛！
+5奖励规则>
- 提示1：5a+G5bqm5bm25LiN5piv4oCc6IO95ZCm55So5L2c6JCD5Y+W5YmC4oCd55qE5qCH5YeG5LmL5LiA77yM5Y+q5piv5Zyo5Yik5pat5YiG5bGC5pe26ZyA6KaB55So5Yiw44CC
- 答案：Qw==
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
本课配套习题挑战模式5/5
单选题
难度系数：
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 |
一次做对，真牛！
+5奖励规则>
- 提示1：5Zub5rCv5YyW56Kz5LiO5rC05LqS5LiN55u45rq277yM5omA5Lul5LiA5a6a5Lya5YiG5bGC44CC5LiU56KY5Lya6KKr6JCD5Y+W5Yiw5Zub5rCv5YyW56Kz5Lit44CC
- 提示2：5Zub5rCv5YyW56Kz55qE5a+G5bqm5q+U5rC05aSn44CC
- 提示3：56KY55qE5Zub5rCv5YyW56Kz5rq25ray5Li657Sr57qi6Imy44CC
- 答案：Qw==
56KY55qE5Zub5rCv5YyW56Kz5rq25ray5Zyo5LiL5bGC77yM5Li657Sr57qi6Imy77yM5LiK5bGC5Li65peg6Imy55qE5rC044CC5Zug5q2kQ+mhueato+ehruOAgg==
