CIE A-Level化学Paper 1真题讲解（3）

考试局：Cambridge Assessment International Education (CAIE)    

考试类别：International Advanced Level    

考试阶段：International Advanced Subsidiary    

考试科目：Chemistry    

考试单元：Paper 1 Multiple Choice    

试卷代码：9701/12    

试卷年份：May/June 2019

题目：

How many of the solutions shown, when added to separate portions of magnesium sulfate solution, produce a white precipitate?

题目难度：一般简单

考点分析：考查