Question

When carbon dioxide is passed through lime water, it turns milky due to two formation of
A) Calcium hydroxide B) Sodium hydrogen carbonate C) Calcium carbonate D) None of these

Answer 1

C may be a correct answer .

Answer 2

when CO2 gas is passed through lime water it turns milky due to the formation of calcium carbonate which formula is CaCO3. when excess of carbon dioxide is passed through calcium carbonate calcium hydrogen carbonate is formed and solution become colourless.