Question

answer this question​

Answer 1

Answer:

1. To test the presence of Carbon (iv) oxide in soil
2. i String ii Conical flask
3. A white precipitate will be seen in the conical flask
4. CO2 in soil reacts with lime water to form calcium carbonate which is an insoluble white precipitate
5. there is no observable change since lime water remains colorless
6. C02 + Ca(OH)2------------> CaCO3 + H20

Explanation:

in set up A the fresh soil contains carbon (iv) oxide which reacts with lime water to form an insoluble white precipitate of calcium carbonate. In set up B carbon (iv) oxide is not present in the soil since it has been boiled the gas has been expelled. Therefore there is no observable change in B