Question

Thermal decomposition of ___ gives Lead oxide, Nitrogen dioxide and Oxygen (lead carbonate/lead nitrate)

Answer 1

1. Thermal decomposition

Thermal decomposition is a type of reaction in which the decomposition of reactant takes place in the presence of heat. A large amount of energy gets consumed by the reactant to undergo decomposition.

2. Thermal decomposition of Lead nitrate

The thermal decomposition of Lead nitrate forms Lead oxide $\left(\mathrm{PbO}\right)$, Nitrogen dioxide $\left({\mathrm{NO}}_2\right)$ and Oxygen $\left({\mathrm{O}}_2\right)$. The chemical reaction is:

$2\mathrm{Pb}{\left({\mathrm{NO}}_3\right)}_2\left(\mathrm{s}\right)\stackrel{\mathrm{Heat}}{\to }2\mathrm{PbO}\left(\mathrm{s}\right)+4{\mathrm{NO}}_2\left(\mathrm{g}\right)+{\mathrm{O}}_2\left(\mathrm{g}\right)$

The thermal decomposition of Lead carbonate will form Lead oxide and Carbon dioxide.

So, the thermal decomposition of Lead nitrate gives Lead oxide, Nitrogen dioxide, and Oxygen.