Question

Formation of calcium oxide and carbon dioxide by heating limestone is an example of double decomposition reaction.

• A. True
• B. False

Answer 1

The correct option is B False

False. Combination Reaction

In combination reactions, two substances, either elements or compounds, react to produce a single compound. One type of combination reaction involves two elements. Most metals react with most nonmetals to form ionic compounds. The products can be predicted from the charges expected for cations of the metal and anions of the nonmetal.

$CaO\left(s\right)+C{O}_2\left(g\right)\to CaC{O}_3\left(s\right)$