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离子共存

> 下列各组离子在所给的条件下能大量共存的是（　　） A．在pH=1的溶液中：NH4+、K+、ClO-、Cl- B．有SO42-存在的溶液中：Na+、Mg2+、Ca2+、Ba2+ C．有NO3-存在的强酸性溶液中：NH4+、Fe2+、I-、Br- D．遇酚酞变红的溶液中：Na+、S2-、AlO2-、SO32-

问题：

发布时间：2024-09-10

下列各组离子在所给的条件下能大量共存的是（　　）

A．在pH=1的溶液中：NH₄⁺、K⁺、ClO^-、Cl^-

B．有SO₄^2-存在的溶液中：Na⁺、Mg²⁺、Ca²⁺、Ba²⁺

C．有NO₃^-存在的强酸性溶液中：NH₄⁺、Fe²⁺、I^-、Br^-

D．遇酚酞变红的溶液中：Na⁺、S^2-、AlO₂^-、SO₃^2-

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