下列实验方案合理的是 A.用饱和碳酸钠溶液除去乙酸乙酯中混有的乙酸等杂质b.用加入浓溴水的方法分离苯和苯酚的混合物c.制备fecl3溶液时先 Template




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tomski下列实验方案合理的是 a.用饱和碳酸钠溶液除去乙酸乙酯中混有的乙酸等杂质b.用加入浓溴水的方法分离苯和苯酚的混合物c.制备fecl3溶液时先 coloring