39Tests Ions GasesEasy1 markSolution X contains aqueous sulfite ions. Which method describes the test for the aqueous sulfite ions in X?AAdd nitric acid to X. The gas produced turns limewater cloudy.BAdd nitric acid to X. The gas produced decolourises aqueous potassium manganate(VII).CAdd nitric acid to X then add aqueous barium chloride to give a white precipitate.DAdd nitric acid to X then add aqueous silver nitrate to give a pale yellow precipitate.Grade answerGrading criteria