Question

Define the term decomposition reaction.

Answer 1

• The reaction in which either two or more products are formed from a single reactant molecule is termed as decomposition reaction.
• Example of a decomposition reaction:

$$\begin{gathered} {\mathrm{CaCO}}_3\left(\mathrm{s}\right)\stackrel{∆}{\to }\mathrm{CaO}\left(\mathrm{s}\right)+{\mathrm{CO}}_2\left(\mathrm{g}\right) \\ \mathrm{Calcium}\mathrm{Calcium} \\ \mathrm{carbonate}\mathrm{oxide} \end{gathered}$$