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化学
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有两瓶无色液体,分别是CCL4和水,只用试管,不用任何其它试剂,如何鉴别?
答案是把其中一瓶中少量溶液倒入另一瓶中,会发生分层现象.可是不是无色液体吗?分层怎么看得出来呢?
人气:101 ℃ 时间:2019-11-13 20:25:54
解答
分层界面很清晰的,即使都无色也能看出来
应该是相互滴加,CCL4在水中能沉下去,是个小油滴
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