题目内容

【题目】学习溶液的知识后，可以帮助我们正确认识溶液的组成及物质的溶解过程，下表是几位同学对溶液的错误认识，请你用熟悉的实例来否定其观点．

序号

错误观点

否定实例

（1）

溶液一定是无色的

（2）

均一、稳定的液体一定是溶液

（3）

溶液中的溶剂一定是水

（4）

一种溶剂最多溶解一种溶质

（5）

两种液体混合后充分振荡，一定得到溶液

【答案】（1）硫酸铜溶液是蓝色的 （2）水是均一、稳定的液体，但水不是溶液 （3）碘酒中酒精是溶剂 （4）在海水中有食盐、氯化镁等多种溶质 （5）把植物油放入水中充分振荡后，形成乳浊液

【解析】本题考查对溶液的概念、组成、特征、性质的认识．从溶液的定义看，只有一种或几种物质分散到另一种物质中形成均一、稳定的混合物才是溶液，即溶液中，溶质可以是一种，也可以是多种，可以是固体、液体、气体中的任意一种；溶剂也不一定是水；溶液具有均一、稳定性，但不一定是无色的；溶液一定是混合物．

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【题目】C

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