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离子共存

> 下列各组离子在溶液中能大量共存，通入CO 2后仍能大量共存的一组是 [ ] A．K ＋、Ca 2＋、Cl －、NO 3 － B．K ＋、Na ＋、Br －、SiO 3 2－ C．H ＋、Fe 2＋、SO 4 2－、Cl 2 D．K ＋、Ag ＋、NH 3·H 2O、NO 3 －

问题：

发布时间：2024-09-13

下列各组离子在溶液中能大量共存，通入CO ₂后仍能大量共存的一组是
[ ]
A．K ^＋、Ca ^2＋、Cl ^－、NO ₃ ^－
B．K ^＋、Na ^＋、Br ^－、SiO ₃ ^2－
C．H ^＋、Fe ^2＋、SO ₄ ^2－、Cl ₂
D．K ^＋、Ag ^＋、NH ₃·H ₂O、NO ₃ ^－

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