Which of the following on reaction with acid will produce ${\text{CO}}_2$?

The correct options are
C

Metal Carbonates

D

Metal Bicarbonate

• Acid on reaction with a metal gives salt and hydrogen gas.

$Acid\left(aq\right)+Metal\left(s\right)\to Metalsalt\left(s\right)+H_{2\left(g\right)}$

• Acid on reaction with base gives salt and water.

$Acid\left(aq\right)+Base\left(aq\right)\to Salt\left(s\right)+H_2{O}_{\left(aq\right)}$

• Acid reacts with metal carbonate to give carbon dioxide, water and the respective metal salt.

$MetalCarbonate\left(s\right)+Acid\left(aq\right)\to Metalsalt\left(s\right)+C{O}_{2\left(g\right)}+H_2{O}_{(}l)$

• Acid reacts with metal bicarbonate to give carbon dioxide, water and the metal salt.

$MetalBicarbonate\left(s\right)+Acid\left(aq\right)\to Metalsalt\left(s\right)+C{O}_2\left(g\right)+H_2{O}_{\left(l\right)}$