下列物质能在pH=1的溶液中大量共存且能形成有色溶液的是

题干

下列物质能在pH=1的溶液中大量共存且能形成有色溶液的是（）

A：KNO₃、Na₂SO₄、KMnO₄

B：MgSO₄、NaNO₃、KCl

C：FeCl₃、NaOH、KNO₃

D：BaCl₂、CuSO₄、HCl

上一题下一题 0.0难度选择题更新时间:2010-12-21 11:25:41

A

B

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Opening time	◆9: 00a.m.--6:00p.m. from Monday to Friday ◆8: 00a.m.- 10: 00p.m. from Saturday to Sunday
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