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2018年中考化学真题分类汇编1物质的构成和变化考点4溶液1溶液的概念和特点（无答案）.doc

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1溶液（18 本溪）2下列物质属于溶液的是A牛奶 B豆浆 C蒸馏水 D碘酒（18 潍坊）4下列物质不属于溶液的是（ ）A碘酒 B矿泉水 C白醋 D蒸馏水7（2018 广西省玉林市，题号 7，分值 2）下列饮品中，属于溶液的是A.纯净水 B.玉米汁 C.糖水 D.豆浆【答案】C【解析】一种或几种物质分散到另外一种物质中，形成的均一稳定的液体叫做溶液。溶液的基本特征是均一性和稳定性，溶液一定是混合物。纯净水是纯净物，不属于溶液；玉米汁和豆浆不均匀，不稳定，不属于溶液；只有糖水，是糖溶解于水中，有均一性和稳定性，属于溶液，所以 C 正确。【知识点】溶液的定义及其应用；溶液的基本特征

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