Question

Calcium carbonate reacts with dilute hydrochloric acid to form calcium chloride. In this reaction, carbon dioxide gas evolved with brisk effervescence.

• A. True
• B. False

Answer 1

The correct option is A True

• Calcium carbonate(${\mathrm{CaCO}}_3$) upon reaction with dilute Hydrochloric acid($\mathrm{HCl}$) results in the formation of calcium chloride(${\mathrm{CaCl}}_2$), water(${\mathrm{H}}_2\mathrm{O}$), and evolves carbon dioxide gas(${\mathrm{CO}}_2$)
• The balanced equation of the reaction is
• $\underset{\mathrm{Calcium}\mathrm{carbonate}}{{\mathrm{CaCO}}_3\left(\mathrm{s}\right)}+\underset{\mathrm{Hydrochloric}\mathrm{acid}}{2\mathrm{HCl}\left(\mathrm{aq}\right)}\to \underset{\mathrm{Calcium}\mathrm{chloride}}{{\mathrm{CaCl}}_2\left(\mathrm{aq}\right)}+\underset{\mathrm{Carbondioxide}}{{\mathrm{CO}}_2\left(\mathrm{g}\right)}+\underset{\mathrm{Water}}{{\mathrm{H}}_2\mathrm{O}\left(\mathrm{l}\right)}$