Question

CaO and $C{O}_2$ are produced by heating $CaC{O}_3$. What are the type of the reaction and the process?

• A. Displacement reaction and endothermic process
• B. Decomposition reaction and exothermic process
• C. Decomposition reaction and endothermic process
• D. Combination reaction and endothermic process

Answer 1

The correct option is B

Decomposition reaction and exothermic process

Calcium carbonate compound decomposes into calcium oxide and carbon dioxide, this is known as decomposition reaction with a release of energy. Decomposition reaction is a type of reaction in which a single compound breaks down into two or more element. The reaction in which there is a release of energy is called as an exothermic reaction.