Question

68. (a) What happens when sulphur dioxides dissolved in Water ? Write a word equation the reaction
which takes place.
w
equation​

Answer 1

Answer:

When sulphur dioxide is dissolved in water, then it forms sulphurous acid (H2SO3).

Explanation:

Metals react with oxygen to form metallic oxides. These metallic oxides are basic in nature because they react with water to form bases. On the other hand, non-metals react with oxygen to form non-metallic oxides and these oxides differ from metallic oxides because they are acidic in nature. Also, non-metallic oxides react with water to form acids. Sulphur is non-metal, and sulphur dioxide (SO2) is acidic in nature. Thus, it reacts with water to form sulphurous acid (H2SO3 or H2O.SO2)

The chemical reaction is: SO2 + H2O → H2SO3

Answer 2

sulpher dioxide + water = sulfurous oxide

so2+h2o = h2so3