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Text Solution

`Ag_(2)SO_(4)``BaSO_(4)``CaSO_(4)`all of these

Answer :

BSolution :

`K_(sp)` for `Ag_(2)SO_(4)=[Ag^(+)]^(2)[SO_(4)^(2-)]` <br> `:. [SO_(4)^(2-)]` for precipitation of `Ag_(2)SO_(4) lt (K_(sp))/([Ag^(+)]^(2))=(10^(-5))/((0.1)^(2))=10^(-3)M` <br> Similarly, `[SO_(4)^(2-)]` for precipitation of `BaSO_(4) lt (K_(sp))/([Ba^(2+)])=(10^(-11))/(0.1)=10^(-10)M` <br> `[SO_(4)^(2-)]` for precipitation of `CaSO_(4) lt (K_(sp))/([Ca^(2+)])=(10^(-6))/(0.1)=10^(-5)M` <br> Thus, minimum `[SO_(4)^(2-)]` reuired for precipitaion is for `BaSO_(4)`.