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离子共存

> 某工厂排放的工业废水中可能含有K +、Ag +、NH 4 +、Mg 2+、SO 4 2-、Cl -、NO 3 -、HCO 3 -等离子．经检测废水呈明显的碱性，则可确定该厂废水中肯定不含有的离子组合是（　　） A．Ag+、K+、NO3-、HCO3- B．K+、NH4+、NO3-、SO42- C．Ag+、NH4+、Mg2+、HCO3- D．K+、Mg2+、SO42-、Cl-

问题：

发布时间：2024-09-12

某工厂排放的工业废水中可能含有K ⁺、Ag ⁺、NH ₄ ⁺、Mg ²⁺、SO ₄ ^2-、Cl ^-、NO ₃ ^-、HCO ₃ ^-等离子．经检测废水呈明显的碱性，则可确定该厂废水中肯定不含有的离子组合是（　　）

A．Ag⁺、K⁺、NO₃^-、HCO₃^- B．K⁺、NH₄⁺、NO₃^-、SO₄^2-

C．Ag⁺、NH₄⁺、Mg²⁺、HCO₃^- D．K⁺、Mg²⁺、SO₄^2-、Cl^-

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