Question

Co2 and so2 both turns lime watr milky. How will you distinguish them

Answer 1

co2 has a pungent order
while so2 has a choking smell
hope wil help u.

Answer 2

Carbon dioxide (CO2) turns lime water milky due to the formation of insoluble calcium carbonate, CaCO3. Sulphur dioxide (SO2) also does the same, but slowly, as it reacts with calcium hydroxide to form insoluble calcium sulphite.

So rate of reaction is one way to distinguish them