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离子共存

> 下列离子或分子组中能大量共存且满足相应要求的是 [ ] 离子或分子要求 A. K +、NO 3 -、Cl -、HS - c(K +) B. Fe 3+、NO 3 -、SO 3 2-、Cl - 滴加盐酸立即有气体产生 C. NH 4 +、Al 3+、SO 4 2-、CH 3COOH 滴加NaOH溶液立即有气体产生 D. Na +、HCO 3 -、Mg 2+、SO 4 2- 滴加氨水有沉淀产生

问题：

发布时间：2024-09-12

下列离子或分子组中能大量共存且满足相应要求的是
[ ]

离子或分子

要求

A.
K ⁺、NO ₃ ^-、Cl ^-、HS ^-

c(K ⁺)

B.
Fe ³⁺、NO ₃ ^-、SO ₃ ^2-、Cl ^-

滴加盐酸立即有气体产生

C.
NH ₄ ⁺、Al ³⁺、SO ₄ ^2-、CH ₃COOH

滴加NaOH溶液立即有气体产生

D.
Na ⁺、HCO ₃ ^-、Mg ²⁺、SO ₄ ^2-

滴加氨水有沉淀产生

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