Question

The total number of products formed by thermal decomposition of $\mathrm{Pb}{\left({\mathrm{NO}}_3\right)}_2$ are :

• A. 3

Answer 1

The correct option is A 3
Thermal decomposition of lead nitrate produces lead oxide, nitrogen dioxide and oxygen. The complete reaction is as follows:
$2\mathrm{Pb}{\left({\mathrm{NO}}_3\right)}_2\left(s\right)\stackrel{\mathrm{heat}}{\to }2\mathrm{PbO}\left(s\right)+4{\mathrm{NO}}_2\left(g\right)+O_2\left(g\right)$

Therefore, the total number of products formed are three.