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离子共存

> 下列溶液中，各组离子一定能够大量共存的是（　　） A．无色溶液中：K+、H+、SO42-、MnO4- B． c(H+) c(OH-) =10-10的溶液中：K+、Na+、CO32-、[Al（OH）4]- C．能使pH试纸变蓝色的溶液中：Ca2+、Na+、CO32-、SO42- D．含有大量Fe3+的溶液中：H+、Mg2+、I-、SCN-

问题：

发布时间：2024-09-08

下列溶液中，各组离子一定能够大量共存的是（　　）

A．无色溶液中：K⁺、H⁺、SO₄^2-、MnO₄^-

B．

c(H+)

c(OH-)

=10-10的溶液中：K⁺、Na⁺、CO₃^2-、[Al（OH）₄]^-

C．能使pH试纸变蓝色的溶液中：Ca²⁺、Na⁺、CO₃^2-、SO₄^2-

D．含有大量Fe³⁺的溶液中：H⁺、Mg²⁺、I^-、SCN^-

参考答案：

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