Ba(NO3)2 + Na2SO4 -> BaSO4↓ + 2NaNO3 — Redox Reactions and Volumetric Analysis Chemistry Question

💡 Solution & Explanation

Step 1: Note that both barium nitrate, Ba(NO3)2, and sodium sulfate, Na2SO4, are soluble salts in water. Step 2: Upon mixing, they undergo a double displacement reaction to form highly insoluble barium sulfate, BaSO4↓, which precipitates as a white solid. Step 3: Therefore, this is a precipitate formation reaction, which corresponds to option (a).