Question

Name the acid formed when sulphur dioxide dissolves in water

Answer 1

Sulphur dioxide can dissolve in water to form Sulfurous acid(H2SO3). Sulphur dioxide (SO2) dissolves in Water (H2O) and make Sulphurous acid (H2SO3).

Answer 2

SO2(g) + H2O(l) - > H2SO3 (aq)

The condition is adjusted as composed. Really straightforward, isn't that so?

That is the condition you're expecting. SO2 is much similar to CO2. They both dissolve in water and they both form fictious acids.

And like the nonexistent H2CO3, there are no particles of H2SO3, either.

What we call ""sulfurous acid"" is really a solution to dissolve sulfur dioxide in balance with some H+ and HSO3-particles.

SO2(aq) + H2O(l) <==> H+ + HSO3