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离子共存

> 室温下，在强酸性和强碱性溶液中都不能大量共存的离子组是 [ ] A．NH 4 +、Cu 2+、Cl -、NO 3 - B．K +、Na +、SO 4 2-、S 2- C．K +、Na +、AlO 2 -、SO 4 2- D．Ba 2+、Fe 2+、NO 3 -、Br -

问题：

发布时间：2024-09-09

室温下，在强酸性和强碱性溶液中都不能大量共存的离子组是
[ ]
A．NH ₄ ⁺、Cu ²⁺、Cl ^-、NO ₃ ^-
B．K ⁺、Na ⁺、SO ₄ ^2-、S ^2-
C．K ⁺、Na ⁺、AlO ₂ ^-、SO ₄ ^2-D．Ba ²⁺、Fe ²⁺、NO ₃ ^-、Br ^-

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