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离子共存

> 在下列各组溶液中，离子一定能大量共存的是 [ ] A．使紫色石蕊试液变红的溶液：Fe 2+、Mg 2+、NO 3 -、Cl - B．强碱性溶液中：Na ＋、K ＋、SO 4 2－、AlO 2 － C．无色透明溶液中：HCO 3 －、Na ＋、Cl －、OH － D．与铝反应生成H 2的溶液中：Na ＋、Cu 2＋、Cl －、SO 4 2－

问题：

发布时间：2024-09-12

在下列各组溶液中，离子一定能大量共存的是
[ ]
A．使紫色石蕊试液变红的溶液：Fe ²⁺、Mg ²⁺、NO ₃ ^-、Cl ^-
B．强碱性溶液中：Na ^＋、K ^＋、SO ₄ ^2－、AlO ₂ ^－
C．无色透明溶液中：HCO ₃ ^－、Na ^＋、Cl ^－、OH ^－
D．与铝反应生成H ₂的溶液中：Na ^＋、Cu ^2＋、Cl ^－、SO ₄ ^2－

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