SO₂ when passed through water forms a solution of_______

Reaction of Sulphur dioxide with water:

• When sulphur dioxide is dissolved in water, it will lead to the formation of Sulphurous acid.
• The balanced chemical reaction can be represented as:

$\underset{\mathrm{Sulphur}\mathrm{dioxide}}{{\mathrm{SO}}_2\left(\mathrm{g}\right)}+\underset{\mathrm{Water}}{{\mathrm{H}}_2\mathrm{O}\left(\mathrm{l}\right)}\to \underset{\mathrm{Sulphrous}\mathrm{acid}}{{\mathrm{H}}_2{\mathrm{SO}}_3\left(\mathrm{aq}\right)}$

Therefore, SO₂ when passed through water forms a solution of Sulphurous acid.