为了提纯下列物质(括号内为杂质)，所选用的除杂试剂与除杂方法

更新 2022-09-03
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为了提纯下列物质(括号内为杂质)，所选用的除杂试剂与除杂方法都正确的是

不纯物

除杂试剂

除杂方法

A．
乙醛（乙酸）
纯碱溶液
蒸馏

B．
硫酸钠溶液(NaCl)
AgNO₃溶液
过滤

C．
溴化钠溶液（NaI）
氯水、CCl₄
萃取、分液

D．
溴苯(Br₂)
乙烯
分液

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