题目内容
【题文】2.下列关于胶体的叙述中,不正确的是
2021-09-02
A.胶体中分散质粒子的直径小于1 nm
B.胶体是一种介稳体系
C.用滤纸能分离胶体和悬浊液
D.利用丁达尔效应可以区分溶液和胶体
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