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离子共存

> 某无色溶液中，若加入溴水，溴水褪色，若加入NH 4HCO 3，固体溶解并产生刺激性气味的气体，则该溶液中可能大量存在的离子组是 [ ] A．Na +、Mg 2+、S 2-、ClO - B．H +、Na +、SO 4 2-、NO 3 - C．K +、Ca 2+、OH -、SO 3 2- D．Na +、K +、Cl -、OH -

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发布时间：2024-09-07

某无色溶液中，若加入溴水，溴水褪色，若加入NH ₄HCO ₃，固体溶解并产生刺激性气味的气体，则该溶液中可能大量存在的离子组是
[ ]
A．Na ⁺、Mg ²⁺、S ^2-、ClO ^-B．H ⁺、Na ⁺、SO ₄ ^2-、NO ₃ ^-C．K ⁺、Ca ²⁺、OH ^-、SO ₃ ^2-D．Na ⁺、K ⁺、Cl ^-、OH ^-

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