1.

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

Answer»

`CO_(3)^(2-)` but not any of the other two
`SO_(3)^(2-)` but not any of the other two
`SO_(4)^(2-)` but not any of the other two
any of them

SOLUTION :`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-) rarrunderset("White ppt.")(BaSO_(4))+2Cl^(-)):}`


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