在酸性溶液中,下列各组离子能大量共存的是(    ) A.Fe3+、NO、Cl-、

在酸性溶液中,下列各组离子能大量共存的是(    )

A.Fe3+、NO、Cl-、Al3+

B.Fe3+、Cl-、I-、K+

C.Fe2+、K+、SO、NO

D.Fe2+、SO、K+、MnO

答案

A


解析:

A选项符合题意;B选项中Fe3+和I-能发生氧化还原反应;C、D选项中Fe2+在酸性条件下能被NO、MnO氧化。

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