Question

Which among these reactions undergo thermal decomposition?

• A. $CaC{O}_3\to CaO+C{O}_2$
• B. $ZnC{O}_3\to ZnO+C{O}_2$
• C. $2Pb(N{O}_3{)}_2\to 2PbO+O_2+4N{O}_2$
• D. All of these

Answer 1

The correct option is D All of these

All of these undergo decomposition upon heating.

Thermal decomposition is a reaction that happens when a substance is subjected to heat then it decomposes into its constituents. Metal nitrates and metal carbonates of low and moderately reactive metals undergo thermal decomposition reactions.