On thermal decomposition of lead nitrate, which solid product is formed besides gases?
Answer and explanation
Correct answer: Lead oxide
On heating, lead nitrate undergoes thermal decomposition: \(2\mathrm{Pb(NO_3)_2} \xrightarrow{\Delta} 2\mathrm{PbO} + 4\mathrm{NO_2} + \mathrm{O_2}\). Therefore, lead oxide, \(\mathrm{PbO}\), is the solid product, whereas nitrogen dioxide and oxygen are gases. Lead chloride cannot form because no chloride source is present in the reaction.
Frequently asked questions
What is the correct answer to this question?
Lead oxide
Why is this the correct answer?
On heating, lead nitrate undergoes thermal decomposition: \(2\mathrm{Pb(NO_3)_2} \xrightarrow{\Delta} 2\mathrm{PbO} + 4\mathrm{NO_2} + \mathrm{O_2}\). Therefore, lead oxide, \(\mathrm{PbO}\), is the solid product, whereas nitrogen dioxide and oxygen are gases. Lead chloride cannot form because no chloride source is present in the reaction.
Which subject and chapter does this question cover?
This is a Class 10 Science question. Chapter: Chemical Substances – Nature and Behaviour. Topic: Chemical Reactions and Equations.
