Why does lime water turn milky when C02 is passed into it

1.	Why does lime water turn milky when C02 is passed into it
Answer» When CO2 is passed through lime water milky white precipitate is formed because of the formation of "CALCIUM CARBONATE" Clear, colorless limewater absorbs\xa0carbon dioxide\xa0readily from air, giving a milky solution. This is due to the insoluble suspension of\xa0calcium carbonate\xa0formed:Ca(OH)2(aq)\xa0+ CO2(g)\xa0→\xa0CaCO3(s)\xa0+ H2O(l)If excess CO2\xa0is added, the following reaction takes place:CaCO3(s)\xa0+ H2O(l)\xa0+ CO2(g)\xa0→ Ca(HCO3)2(aq) Due to the formation of calcium carbonate which is insoluble in water When carbon dioxide is passed through or over lime water it turns ? milky due to the calcium carbonate

Discussion