Question

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 :

• 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 1

The Correct Option is D

$\because$ If $CO _{3}^{2-}, SO _{3}^{2-}$ and $SO _{4}^{2-}$ are present alongwith $BaCl _{2}$, these can also show white precipitate (as precipitate of all these are also white).