Question

reaction of acid with metal hydrogen carbonate . which gas will release? how will you check the presence of the gas ?​

Answer 1

Answer:

Hydrogen gas will release

a pop sound denotes availability of hydrogen

Answer 2

Explanation:

NaHCO3 + HCl --> NaCl + H20 + CO2

Carbon dioxide gas is released

To check the presence , just take a test tube containing freshly prepared lime water and bring it near the mouth of the test tube where the gas is being evolved..The lime water will turn milky..