Correct option is D
The correct answer is: (D). Barium sulfate
When potassium sulfate (K₂SO₄) reacts with barium chloride (BaCl₂), a double displacement reaction occurs, and barium sulfate (BaSO₄) forms as a precipitate. The reaction is as follows:
Here:
- Barium sulfate (BaSO₄) is insoluble in water and forms a white precipitate.
- Potassium chloride (KCl) remains in the aqueous solution.
Thus, barium sulfate is the substance that forms a precipitate in this reaction.