在下列溶液中,各组离子一定能够大量共存的是            

 在下列溶液中,各组离子一定能够大量共存的是                     

A.某强酸性溶液:Na+、Fe2+、Cl、ClO

B.加入铝粉能放出大量H2的溶液:K+、NH4+、SO42、CO32

C.常温下pH=14的溶液:Al3+、Na+、Cl、HCO3

D.常温下c(OH)/c(H+)=1012的溶液:K+、Ba2+、Cl、NO3

 

答案

 D

 

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