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离子共存

> 下列溶液中一定能大量共存的离子组是（　　） A．含有大量NO3-的溶液：H+、Fe2+、SO42-、Cl- B．使酚酞变红的溶液：Na+、Ca2+、SO42-、CO32- C．含有大量Fe3+的溶液：Na+、Mg2+、NO3-、SCN- D．含有大量Al3+的溶液：Na+、NH4+、SO42-、Cl-

问题：

发布时间：2024-09-08

下列溶液中一定能大量共存的离子组是（　　）

A．含有大量NO₃^-的溶液：H⁺、Fe²⁺、SO₄^2-、Cl^-

B．使酚酞变红的溶液：Na⁺、Ca²⁺、SO₄^2-、CO₃^2-

C．含有大量Fe³⁺的溶液：Na⁺、Mg²⁺、NO₃^-、SCN^-

D．含有大量Al³⁺的溶液：Na⁺、NH₄⁺、SO₄^2-、Cl^-

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下列溶液中一定能大量共存的离子组是（ ） A．含有大量NO3-的溶液：H+、Fe2+、SO42-、Cl- B．使酚酞变红的溶液：Na+、Ca2+、SO42-、CO32- C．含有大量Fe3+的溶液：Na+、Mg2+、NO3-、SCN- D．含有大量Al3+的溶液：Na+、NH4+、SO42-、Cl-

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