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离子共存

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

问题：

发布时间：2024-09-12

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

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