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离子共存

> 下列离子组中一定能在指定的溶液中大量共存的是（　　） A．在c（H+）=1.0×10-13mol•L-1的溶液：NH4+、K+、ClO-、Cl- B．在pH=3的溶液中：Fe2+、Mg2+、NO3-、Cl- C．投入铝粉能产生H2的溶液：Na+、S2-、AlO2-、SO32- D．投入锌粉能产生H2的溶液：Na+、Cl-、SO42-、Al3+

问题：

发布时间：2024-09-07

下列离子组中一定能在指定的溶液中大量共存的是（　　）

A．在c（H⁺）=1.0×10^-13mol•L^-1的溶液：NH₄⁺、K⁺、ClO^-、Cl^-

B．在pH=3的溶液中：Fe²⁺、Mg²⁺、NO₃^-、Cl^-

C．投入铝粉能产生H₂的溶液：Na⁺、S^2-、AlO₂^-、SO₃^2-

D．投入锌粉能产生H₂的溶液：Na⁺、Cl^-、SO₄^2-、Al³⁺

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