When `BaCl_(2)` is added to an aqueous salt solution , a white ppt. is obtained . The anion amoung `CO_(3)^(2-) , SO_(3)^(2-) and SO_(4)^(2-)` that was present in the solution can be

Options

A. `CO_(3)^(2-)` but not any of the other two
B. `SO_(3)^(2-)` but not any of the other two
C. `SO_(4)^(2-)` but not any of the other two
D. any of them

Answer

D

Explanation

`BaCl_(2)` reacts with `CO_(3)^(2-), SO_(3)^(2-) and SO_(4)^(2-)` to form white ppt.
`{:(BaCl_(2)+CO_(2)^(2-) rarr underset("White ppt.")(BaCOdarr) + 2Cl^(-)),(BaCl_(2)+SO_(3)^(2-) rarr underset("White ppt.")(BaSO_(3))+2Cl^(-)),(BaCl_(2)+SO_(4)^(2-) rarr underset("White ppt.")(BaSO_(4))+2Cl^(-)):}`