下列各组离子，在所给条件下一定能大量共存的是_刷题宝

题干

下列各组离子，在所给条件下一定能大量共存的是

A：pH='0' 的溶液中：Mg²⁺、Fe³⁺、NO₃^-、SO₄^2-

B：能使pH试纸变红色的溶液中：Na⁺、AlO₂^-、S^2-、CO₃^2-

C：含有大量Fe³⁺的溶液：SCN^-、I^-、K⁺、Br^-

D：由水电离出的c(OH^-)=1×10^－¹³ mol·L^－¹的溶液中：NH₄⁺、Al³⁺、NO₃^-、Cl^-

上一题下一题 0.0难度选择题更新时间:2020-01-15 10:07:44

答案(点此获取答案解析）

A

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