Nitrogen dioxide and sulphur dioxide have some properties in common. Which property is shown by one of these compounds, but not by the other? (CBSE AIPMT 2015)

Nitrogen dioxide and sulphur dioxidd froms acid rain. ‘Acid rain’ is the rain water containing sulphuric acid and nitric acid. (a) 3NO₂ + H₂O → 2HNO₃ + NO 2SO₂ + 2H₂O + O₂ → 2H₂SO₄ 27 P-BLOCK ELEMENTS (GROUP 15-18) (b) NO₂ and SO₂ acts as a good reducing agents e.g. SO₂ reduces halogens to halogen acid. Cl₂ + 2H₂O + SO₂ → 2HCl + H₂SO₄ (c) NO₂ and SO₂ both are soluble in water. (d) SO₂ is used in the manufacture of sodium bisulphite (NaHSO₃) which is used as a preservative for jams, jellies sand squashes. But NO₂ is not used as preservative.