Question

Whether the following statements are correct/incorrect?

● Hydrogen gas is evolved when CO2

is passed through lime

water.​

Answer 1

incorrect....!!!!

Carbon dioxide reacts with limewater (a solution of calcium hydroxide, Ca(OH) 2), to form a white precipitate (appears milky) of calcium carbonate, CaCO 3. Adding more carbon dioxide results in the precipitate dissolving to form a colourless solution of calcium hydrogen carbonate.

hope it helps you....☺