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离子共存

> 已知常温下某水溶液中由水电离出来的c(H +)=10 -14mol/L，溶液中可能含有①Fe 2+ ②Cl - ③HCO 3 - ④Na + ⑤NO 3 -⑥Al 3+ 将上述离子任意两种组合，肯定能在该溶液中大量共存的是 [ ] A. ②④ B. ①⑤ C. ④⑤ D. ③④

问题：

发布时间：2024-09-09

已知常温下某水溶液中由水电离出来的c(H ⁺)=10 ^-14mol/L，溶液中可能含有①Fe ²⁺ ②Cl ^- ③HCO ₃ ^- ④Na ⁺⑤NO ₃ ^-⑥Al ³⁺ 将上述离子任意两种组合，肯定能在该溶液中大量共存的是
[ ]
A. ②④
B. ①⑤
C. ④⑤
D. ③④

参考答案：

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