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【单选题】
下列有关沉淀溶解平衡的说法正确的是
A.
Ksp(AB 2 )小于Ksp(CD),则AB 2 的溶解度小于CD的溶解度
B.
在AgCl的沉淀溶解平衡体系中,加入蒸馏水,AgCl的Ksp增大
C.
在AgI的沉淀溶解平衡体系中,加入K 2 S固体,AgI沉淀可转化为Ag 2 S沉淀
D.
在CaCO 3 的沉淀溶解平衡体系中,通入CO 2 气体,溶解平衡不移动
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