Metal compound A reacts with dilute hydrochloric acid to produce effervescence.
Metal compound A reacts with dilute hydrochloric acid to produce effervescence.

The gas evolved extinguishes a burning candle. Write a balanced chemical equation for the reaction if one of the compounds formed is calcium chloride.

Answer:

The gas developed here is CO2 since the metal compound liberated is Calcium Chloride. As a result, calcium carbonate should be metal A. As a result, the interaction of Calcium Carbonate with HCl is as follows:-