BaCO3↓ + CO2 + H2O -> Ba(HCO3)2 — Redox Reactions and Volumetric Analysis Chemistry Question

💡 Solution & Explanation

Step 1: Barium carbonate, BaCO3↓, is an insoluble white precipitate. Step 2: When carbon dioxide gas is bubbled through the aqueous suspension of barium carbonate, it reacts to form soluble barium bicarbonate, Ba(HCO3)2. Step 3: Because the solid precipitate dissolves to form a clear solution of soluble bicarbonate, this is classified as a precipitate dissolution reaction (type B), matching option (b).