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离子共存

> 下列各组离子中，在给定条件下能大量共存的是 [ ] A．在滴加石蕊试液显红色的溶液中：Fe 2+、K +、NO 3 -、Cl - B．在pH为l的溶液中：Cu 2+、Na +、Mg 2+、NO 3 - C．在pH为13的溶液中：K +、HCO 3 -、Br -、Ba 2+ D．在常温时由水电离产生的c(H +)=1.0×10 -13 mol/L的溶液中：Na +、NH 4 +、HCO 3 -、SO 4 2-

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发布时间：2024-09-13

下列各组离子中，在给定条件下能大量共存的是
[ ]
A．在滴加石蕊试液显红色的溶液中：Fe ²⁺、K ⁺、NO ₃ ^-、Cl ^-B．在pH为l的溶液中：Cu ²⁺、Na ⁺、Mg ²⁺、NO ₃ ^-C．在pH为13的溶液中：K ⁺、HCO ₃ ^-、Br ^-、Ba ²⁺
D．在常温时由水电离产生的c(H ⁺)=1.0×10 ^-13 mol/L的溶液中：Na ⁺、NH ₄ ⁺、HCO ₃ ^-、SO ₄ ^2-

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