在进行阳离子系统分析前,必须进行提前分别鉴定的离子是（） A.Na+、K+、NH4+ B.K+、Fe2+、Fe3+ C.NH4、Fe、Fe D.Ca、Na、Fe E. - 查题网

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河南成教 / 无机化学

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在进行阳离子系统分析前,必须进行提前分别鉴定的离子是（）

A.Na+、K+、NH4+

B.K+、Fe2+、Fe3+

C.NH4、Fe、Fe

D.Ca、Na、Fe

E.

积分

无机化学

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