Question

Name the acids formed when following gases are dissolved in water :

Sulphur dioxide($\mathit{S}{\mathit{O}}_{\mathbf{2}}$).

Answer 1

1. Sulphurous acid(${\mathit{H}}_{\mathbf{2}}\mathit{S}{\mathit{O}}_{\mathbf{3}}$) is formed by the reaction of Sulphur dioxide($\mathit{S}{\mathit{O}}_{\mathbf{2}}$) with water.
2. The reaction is, $H_{2}O+S{O}_2\to H_{2}S{O}_3$
3. So, the compound formed is Sulphurous acid.