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离子共存

> 常温下，下列各组离子在指定环境中能大量共存的是 [ ] A．澄清透明的溶液中：Cu 2+、Fe 3+、NO 3 -、Cl - B．使酚酞试液变红的溶液中：NH 4 +、Na +、SO 4 2-、Cl - C．含有大量ClO -的溶液中：K +、OH -、Na +、SO 3 2- D．c(Al 3+)=0.1 mol/L的溶液中：Na +、Cl -、AlO 2 -、SO 4 2-

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发布时间：2024-09-10

常温下，下列各组离子在指定环境中能大量共存的是
[ ]
A．澄清透明的溶液中：Cu ²⁺、Fe ³⁺、NO ₃ ^-、Cl ^-B．使酚酞试液变红的溶液中：NH ₄ ⁺、Na ⁺、SO ₄ ^2-、Cl ^-C．含有大量ClO ^-的溶液中：K ⁺、OH ^-、Na ⁺、SO ₃ ^2-D．c(Al ³⁺)=0.1 mol/L的溶液中：Na ⁺、Cl ^-、AlO ₂ ^-、SO ₄ ^2-

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