Question

5. Compound formed when CO2 is passed through water is (i) H2CO3 (ii) CH3COOH (iii) CaCO3 (iv) None of these 11 .​

Answer 1

Answer:

Reaction with limewater

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 hydrogencarbonate.

Answer 2

Answer:

calcium carbonate, CaCO3.

hope it helps you..

pls don't mind if wrong..