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离子共存

> 下列各组离子一定能大量共存的是 [ ] A．含有大量Fe 3+的溶液中：NH 4 +、Na +、Cl -、SCN - B．在强碱溶液中：Na +、K +、AlO 2 -、CO 3 2- C．在pH=7的溶液中：NH 4 +、Al 3+、SO 4 2-、NO 3 - D．c（OH -）= 10 -13 mol/L的溶液中：K +、Fe 2+、Cl -、NO 3 -

问题：

发布时间：2024-09-08

下列各组离子一定能大量共存的是
[ ]
A．含有大量Fe ³⁺的溶液中：NH ₄ ⁺、Na ⁺、Cl ^-、SCN ^-B．在强碱溶液中：Na ⁺、K ⁺、AlO ₂ ^-、CO ₃ ^2-
C．在pH=7的溶液中：NH ₄ ⁺、Al ³⁺、SO ₄ ^2-、NO ₃ ^-D．c（OH ^-）= 10 ^-13 mol/L的溶液中：K ⁺、Fe ²⁺、Cl ^-、NO ₃ ^-

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