Question

A metal compound ' A' reacts with dilute hydrochloric acid to produce effervescence. The evolved gas extinguishes a burning candle and and when the gas is passed through lime water, lime water turns milky. if one of the compound formed is calcium chloride, identify the compound 'A' and the evolved gas. Write the balanced chemical equations for the two reactions involved.​

Answer 1

Answer:

When calcium carbonate reacts with hydrochloric acid, it produces carbon dioxide gas with effervescence. Carbon dioxide used as fire extinguisher. Hence, it extinguishes a burning candle. Therefore, the metal compound A is calcium carbonate.

metal A is caco3

gas evolved is co2