Question

How can we detect the presence of carbon dioxide gas evolved during the reaction of metal carbonates or metal hydrogen carbonate with acid ?(write two method)

Answer 1

Answer:

To detect the presence of CO2 , lime water is used

Explanation:

If on passing the unknown gas from lime water , it turns milky and on passing excess of gas , if the milkiness disappears , It is concluded that gas is CO2 .

Answer 2

Answer:

please mark me as a brain list

Explanation:

Acid + Metal carbonate ⟶ Salt + Water + Carbon dioxide

CaCO

3

(calcium carbonate-metal carbonate) + 2HCl ⟶ CaCl

2

(calcium chloride-salt) + H

2

O + CO

2