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离子共存

> 下列限制条件下的离子一定可以大量共存的是 [ ] A．由水电离出的c(H +) =1 ×10 -13mol/L的溶液中：Al 3+、K +、NO 3 -、SO 4 2- B．加水稀释时的值明显减小的溶液中：K +、Fe 2+、I -、SO 4 2- C．加入Al能放出H 2的溶液中：NH 4 +、SO 4 2-、Cl -、HCO 3 - D．加入二氧化锰固体可冒出气泡的溶液中：K +、Mg 2+、I -、NO 3 -

问题：

发布时间：2024-09-08

下列限制条件下的离子一定可以大量共存的是
[ ]
A．由水电离出的c(H ⁺) =1 ×10 ^-13mol/L的溶液中：Al ³⁺、K ⁺、NO ₃ ^-、SO ₄ ^2-B．加水稀释时的值明显减小的溶液中：K ⁺、Fe ²⁺、I ^-、SO ₄ ^2-C．加入Al能放出H ₂的溶液中：NH ₄ ⁺、SO ₄ ^2-、Cl ^-、HCO ₃ ^-D．加入二氧化锰固体可冒出气泡的溶液中：K ⁺、Mg ²⁺、I ^-、NO ₃ ^-

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