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离子共存

> 一定能在下列溶液中大量共存的离子组是 [ ] A．c(H +)＝1×10 -13mol·L -1的溶液：Na +、Ca 2+、SO 4 2-、CO 3 2- B．含有大量Al 3+的溶液：Na +、NH 4 +、SO 4 2-、Cl - C．含有大量NO 3 -的溶液：H +、Fe 2+、SO 4 2-、Cl - D．含有大量Fe 3+的溶液：Na +、Mg 2+、NO 3 -、SCN -

问题：

发布时间：2024-09-13

一定能在下列溶液中大量共存的离子组是
[ ]
A．c(H ⁺)＝1×10 ^-13mol·L ^-1的溶液：Na ⁺、Ca ²⁺、SO ₄ ^2-、CO ₃ ^2-
B．含有大量Al ³⁺的溶液：Na ⁺、NH ₄ ⁺、SO ₄ ^2-、Cl ^-
C．含有大量NO ₃ ^-的溶液：H ⁺、Fe ²⁺、SO ₄ ^2-、Cl ^-
D．含有大量Fe ³⁺的溶液：Na ⁺、Mg ²⁺、NO ₃ ^-、SCN ^-

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