Question

Statements given below are incorrect. Write the correct statements.
When limestone(CaCO₃) is heated strongly, it decomposes into calcium and carbon monoxide gas.

Answer 1

A decomposition reaction is a type of chemical reaction in which a reactant decomposes or breaks down to give one or more than one products.

Example of a decomposition reaction:

Decomposition of limestone or Calcium carbonate$\left({\mathrm{CaCO}}_3\right)$.

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

Correct statement: In this reaction, one reactant, i.e., calcium carbonate, is decomposed into more than one product, i.e., calcium oxide and Carbon dioxide.