Question

what happens when Sulphur Dioxide reacts with water?give the chemical reaction involved​

Answer 1

Answer:

When Sulphur dioxide reacts with water, in the presence of excess SO2, Sulphuric acid is formed else Sulphurous Acid is formed. Both the reactions are exothermic.

SO2 + H2O --> H2SO4

OR

SO2 + H2O --> H2SO3

Hope this helps you.

Answer 2

When Sulphur Dioxide reacts with water sulphurous acid is formed.

• Sulfuric acid is a strong acid.
• When sulfuric acid is dissolved in water it reacts with water and forms sulphurous acid.
• The balanced chemical equation of the reaction is as follows-
• $SO_2+H_2O\rightarrow H_2SO_3$.
• In the above reaction, one mole of sulfuric acid reacts with one mole of water to form one mole of sulphurous acid.