Question

Name the following:
A gas liberated when nitric acid reacts with lead carbonate.

Answer 1

• Nitric acid $\left({\mathrm{HNO}}_3\right)$ liberates carbon dioxide $\left({\mathrm{CO}}_2\right)$ when reacts with metallic carbonates.
• The reaction when nitric acid reacts with lead carbonate is:
  ${\mathrm{PbCO}}_3\left(\mathrm{aq}\right)+2{\mathrm{HNO}}_3\left(\mathrm{aq}\right)\to \mathrm{Pb}{\left({\mathrm{NO}}_3\right)}_2\left(\mathrm{aq}\right)+{\mathrm{H}}_2\mathrm{O}\left(\mathrm{l}\right)+{\mathrm{CO}}_2\left(\mathrm{g}\right)\uparrow$
• Thus, carbon dioxide gas is liberated when nitric acid reacts with lead carbonate $\left({\mathrm{PbCO}}_3\right)$.