CIE A-Level化学Paper 1真题讲解（2）

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：

Ammonium sulfate, (NH4)2SO4, and ammonium nitrate, NH4NO3, are used as fertilisers.

These salts have different percentages by mass of nitrogen. They have the same effect as each other on the pH of wet neutral soil.

Which row is correct?