若溶液中由水电离产生的c(OH-)=1×10-14 mol·L-1,满足此条件的溶液

若溶液中由水电离产生的c(OH-)=1×10-14 mol·L-1,满足此条件的溶液中一定可以大量共存的离子组是(    )

A.Al3+         Na+              Cl-

B.K+          Na+        Cl-        

C.K+          Na+        Cl-        

D.K+                      

答案

解析:由题意知水的电离被抑制,说明水溶液可能呈强酸性,也可能呈强碱性。A项中Al3+、D项中在碱性溶液中不能存在;C项中在酸性溶液中不能存在。

答案:B

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