Question

Which of the following on thermal decomposition yields a basic as well as an acidic oxide?

• A. $NaN{O}_3$
• B. $KCl{O}_3$
• C. $CaC{O}_3$
• D. $N{H}_{4}N{O}_3$

Answer 1

The correct option is C $CaC{O}_3$

When calcium carbonate is heated, it breaks down to form calcium oxide and carbon dioxide.

Thermal decomposition is the process in which heat is required.

It is also known as thermolysis.

It is processed in which a compound breaks into two or more products when the heat is supplied.

This reaction is used for the production of oxygen.

This reaction is also used for production of acidic as well as basic oxides.

$CaC{O}_3$ on thermal decomposition gives:

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

$CaO\to$ Basic oxide.

$C{O}_2\to$ Acidic oxide.

Hence option $C$ is correct.