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离子共存

> 某黄色溶液含有下列离子中的几种：Ag +、NH 4 +、Fe 3+、SO 3 2-、HCO 3 -、Br -、SCN -，为检验其成分，先对溶液进行初步分析。下列判断中，不正确的是 [ ] A. 溶液中不存在大量HCO 3 -和SCN - B. 溶液中一定存在大量Fe 3+ C. 溶液可能含有Ag + D. 溶液中可能存在NH 4 +

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发布时间：2024-09-08

某黄色溶液含有下列离子中的几种：Ag ⁺、NH ₄ ⁺、Fe ³⁺、SO ₃ ^2-、HCO ₃ ^-、Br ^-、SCN ^-，为检验其成分，先对溶液进行初步分析。下列判断中，不正确的是
[ ]
A. 溶液中不存在大量HCO ₃ ^-和SCN ^-B. 溶液中一定存在大量Fe ³⁺C. 溶液可能含有Ag ⁺D. 溶液中可能存在NH ₄ ⁺

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