Question

what is observed when sulphur dioxide isbpassed through water and lime water? Also write the chemical equation for the reactions that take place

Answer 1

Hello man!!

When SO2 is passed through water, we get an oily viscous liquid, which is less corrosive in nature.
SO2 + H2O -----> H2SO3
Actually we get sulphurous acid.

When sulphur dioxide is passed through lime water lime water turns milky, due to formation of calcium sulphite.
SO2 + Ca(OH)2 -----> CaSO3 + H2O
Note that Calcium sulphite is milky white in colour.

Thanks!!

Answer 2

Answer:

When SO2 is passed through water, we get an oily viscous liquid, which is less corrosive in nature.

SO2 + H2O -----> H2SO

H2SO3 is actually nothing else than sulphurious acid.

When sulphur dioxide is passed through lime water lime water turns milky, due to formation of calcium sulphite.

SO2 + Ca(OH)2 -----> CaSO3 + H2O

Note that Calcium sulphite is milky white in colour.

HOPE IT HELPS ☺️