Among the following observation, the correct one that differentiates between `SO_(3)^(2-)` and `SO_(4)^(2-)` is

Options

A. Both form precipitates with `BaCl_(2), SO_(3)^(2-)` dissolves in HCl but `SO_(4)^(2-)` does not
B. `SO_(3)^(2-)` forms precipitate with `BaCl_(2), SO_(4)^(2-)` does not
C. `SO_(4)^(2-)` forms precipitate with `BaCl_(2), SO_(4)^(2-)` does not
D. Both forms precipitates with `BaCl_(2), SO_(4)^(2-)` dissolves in HCl but `SO_(3)^(2-)` does not

Answer

A

Explanation

Both `SO_(3)^(2-)` and `SO_(4)^(2-)` form white precipitale with `BaCl_(2)` solution. Out of these, `BaSO_(3)` dissolves in water while `BaSO_(4)` does not.