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.为了除去蛋白质溶液中混有的少量食盐，可采用的方法是
| A: 过滤 |
| B: 渗析 |
| C: 萃取 |
| D: 重结晶 |
一次做对，真牛！
+5奖励规则>
- 提示1：6JuL55m96LSo5LiA57G76auY5YiG5a2Q77yM5LiO5rC05Lya5b2i5oiQ6IO25L2T5YiG5pWj57O777yM6ICM6aOf55uQ5LiO5rC05YiZ5b2i5oiQ5rq25ray44CC
- 答案：Qg==
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
本课配套习题挑战模式2/5
单选题
难度系数：
2.将淀粉与KI的混合液装在半透膜中，浸泡在盛有蒸馏水的烧杯中，过一段时间后，取烧杯中的液体进行实验，能证明半透膜有破损的是
| A: 加入碘水不变蓝色 |
| B: 加入碘水变蓝色 |
| C: 加入AgNO3溶液不产生黄色沉淀 |
| D: 加入AgNO3溶液产生黄色沉淀 |
一次做对，真牛！
+5奖励规则>
- 提示1：5reA57KJ5LiO5rC05b2i5oiQ55qE5piv6IO25L2T5YiG5pWj57O777yM6ICM6IO25L2T57KS5a2Q5Y+v5Lul6YCP6L+H5ruk57q45Y205LiN6IO96YCP6L+H5Y2K6YCP6Iac44CC
- 提示2：S0nmurbkuo7msLTlvaLmiJDmurbmtrLvvIzlj6/ku6XpgI/ov4fljYrpgI/ohpzjgII=
- 答案：Qg==
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
本课配套习题挑战模式3/5
单选题
难度系数：
3.实验室用渗析的方法分离淀粉和食盐的混合液，其装置如图所示．Na+与Cl﹣能穿过半透膜进入烧杯，而淀粉高分子则留在半透膜袋中．下列分离混合物的方法中，与渗析操作的原理相似的是
| A: 用萃取分液的方法分离溴和水 |
| B: 用层析的方法分离溶液中的Cu2+和Fe3+ |
| C: 用蒸馏的方法分离甲醇和乙醇 |
| D: 用过滤的方法分离碳酸钙固体和氯化钙溶液 |
一次做对，真牛！
+5奖励规则>
- 提示1：5Zu+56S65Li66YCP5p6Q55qE5Y6f55CG77yM55So5LqO5YiG56a75LiA56eN54mp6LSo5Y+v5Lul6YCP6L+H6ICM5Y+m56eN54mp6LSo5LiN6IO96YCP6L+H55qE5L2T57O744CC5LiO5LmL55u45Ly855qE5piv6L+H5ruk77yM5Y+q5piv5ruk6L+H57KS5a2Q55qE5aSn5bCP5pyJ5LiN5ZCM44CC
- 答案：RA==
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
本课配套习题挑战模式4/5
单选题
难度系数：
4.淀粉溶液是一种胶体，并且淀粉遇到碘单质可以出现明显的蓝色特征，现将淀粉和稀Na2SO4溶液混合，装在半透膜中，浸泡在盛有蒸馏水的烧杯中，过一段时间后，取烧杯中液体进行实验，能证明半透膜完好无损的是
| A: 加入Ba（NO3）2溶液产生白色的沉淀． |
| B: 加入碘水变蓝 |
| C: 加入Ba（NO3）2溶液没有白色沉淀 |
| D: 加入碘水不变蓝 |
一次做对，真牛！
+5奖励规则>
- 提示1：6IO25L2T57KS5a2Q5LiN6IO96YCP6L+H5Y2K6YCP6Iac44CC5Zug5q2k5LiA5pem6Iac5aSW5a2Y5Zyo6IO25L2T57KS5a2Q77yM5YiZ6K+B5piO5Y2K6YCP6Iac5bey5o2f5Z2P44CC
- 答案：RA==
5Zug5reA57KJ5piv6IO25L2T77yM5LiN6IO96YCP6L+H5Y2K6YCP6Iac77yM5YiZ5Y+q6KaB6KKL5a2Q5LiN56C05o2f77yM5reA57KJ5bCx5LiN5Lya5Ye65p2l77yM5Yqg5YWl56KY5rC05bCx5LiN5Y+Y6JOd77yMPGJyPuaVhemAiUTvvI4=
本课配套习题挑战模式5/5
单选题
难度系数：
5.肾脏病患者需要将血液中的毒液排除，常进行血透治疗，其原理是
| A: 聚沉 |
| B: 过滤 |
| C: 渗析 |
| D: 分液 |
一次做对，真牛！
+5奖励规则>
- 提示1：6KGA5ray6YCP5p6Q5piv5Yip55So5Y2K6YCP6Iac5Lik5L6n5ray5L2T5omA5ZCr5rq26LSo5rWT5bqm5LiN5ZCM77yM5rq26LSo5LuO5rWT5bqm6auY55qE5LiA5L6n57uP6L+H5Y2K6YCP6Iac5ZCR5rWT5bqm5L2O55qE5LiA5L6n56e75Yqo77yO
- 答案：Qw==
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
