Question

When you add sodium hydrogen carbonate to acetic acid in a test tube, a gas liberates immediately with brisk effervescence. Name this gas. Describe the method of testing this ga?

Answer 1

CO2 is the gas

To test this gas pass it through limewater

CO2+Ca(OH)2 ——> Ca(CO)3 + H2O

Presence of milky ness indicates the presence of CO2