Question

plzzz help how is the presence of so2 detected?

Answer 1

For the identification of a gas there are certain tests that are based on their chemical properties.....
For its presence the tests re...
#On passage through lime water it turns it milky...
#It turns acidified potassium dichromate from orange to clear green...
#Also it extinguishes a burning wooden splinter...
Hope it helps u.....