Name the type of following chemical reaction.

$CaC{O}_3\to CaO+C{O}_2$

The correct option is B Decomposition
A decomposition reaction is a type of chemical reaction in which a single compound breaks down into two or more elements or new compounds. These reactions often involve an energy source such as heat, light, or electricity that breaks apart the bonds of compounds.

$CaC{O}_3\to CaO+C{O}_2$