Question

23. from an experiment to study the properties of acetic acid. Answer the following questions:
a) Name the substances which on addition to acetic acid produce carbon dioxide gas. Give relevant chemical
equation for the above?
b) How is CO2 gas tested in the laboratory?​

Answer 1

Answer:

The reaction between baking soda and vinegar NaHCO3(s) + CH3COOH(l) → CO2(g) + H2O(l) + Na+(aq) + CH3COO-(aq)

To test the CO2 gas in a lab, bubble it through lime water.

If the lime water turns milky, it proves the test of carbon dioxide.

Lime water turns milky as reacting with Carbon dioxide it forms Calcium Carbonate