In which of the following reaction SO2 gas is not produced ? — Redox Reactions and Volumetric Analysis Chemistry Question

💡 Solution & Explanation

Step 1: Identify starting materials: Potassium nitrite (KNO2) and silver fluoride (AgF) are both highly soluble in water. Step 2: Observe the double displacement: Mixing these solutions leads to the combination of silver ions and nitrite ions, which precipitates out as silver nitrite (AgNO2↓). Step 3: Since a solid precipitate is formed from soluble reactants, this is classified as a precipitate formation reaction (type A).