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离子共存

> 下列各组离子在给定条件下一定能大量共存的是 [ ] A．含有大量NO 3 -的水溶液中：NH 4 +、Fe 2+、SO 4 2-、H + B．在pH=12的溶液中：ClO -、SO 3 2-、Na +、K + C．含有大量HCO 3 -的澄清透明溶液中：K +、C 6H 5O -、Cl -、Na + D．能与铝粉反应生成氢气的溶液中：Na +、Al 3+、CH 3COO -、I -

问题：

发布时间：2024-09-13

下列各组离子在给定条件下一定能大量共存的是
[ ]
A．含有大量NO ₃ ^-的水溶液中：NH ₄ ⁺、Fe ²⁺、SO ₄ ^2-、H ⁺B．在pH=12的溶液中：ClO ^-、SO ₃ ^2-、Na ⁺、K ⁺C．含有大量HCO ₃ ^-的澄清透明溶液中：K ⁺、C ₆H ₅O ^-、Cl ^-、Na ⁺D．能与铝粉反应生成氢气的溶液中：Na ⁺、Al ³⁺、CH ₃COO ^-、I ^-

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