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离子共存

> 在由水电离产生的H +浓度为1×10 -13mol-L -1的溶液中，一定能大量共存的离子组是（　　） ①K +、Cl -、NO 3 -、S 2- ②K +、Fe 2+、I -、SO 4 2- ③Na +、Cl -、NO 3 -、SO 4 2-④Na +、Ca 2+、Cl -、HCO 3 - ⑤K +、Ba 2+、Cl -、NO 3 -． A．①③ B．③⑤ C．③④ D．②⑤

问题：

发布时间：2024-09-08

在由水电离产生的H ⁺浓度为1×10 ^-13mol-L ^-1的溶液中，一定能大量共存的离子组是（　　）
①K ⁺、Cl ^-、NO ₃ ^-、S ^2- ②K ⁺、Fe ²⁺、I ^-、SO ₄ ^2- ③Na ⁺、Cl ^-、NO ₃ ^-、SO ₄ ^2-④Na ⁺、Ca ²⁺、Cl ^-、HCO ₃ ^- ⑤K ⁺、Ba ²⁺、Cl ^-、NO ₃ ^-．

A．①③ B．③⑤ C．③④ D．②⑤

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