Which of the following compound liberates acidic gas during its hydrolysis? — Redox Reactions and Volumetric Analysis Chemistry Question

💡 Solution & Explanation

Step 1: Complete hydrolysis of sulfur dioxide (SO2) yields sulfurous acid (H2SO3). Step 2: The chemical name of H2SO3 is sulfurous acid, which contains the '-ous' suffix. Step 3: Since the product is an oxyacid with a '-ous' suffix, the correct option is (b).