Question : When Lead nitrate is heated, which of the following gases is produced?
Option 1: Nitrogen oxide
Option 2: Lead dioxide
Option 3: Nitrogen dioxide
Option 4: Lead oxide
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Correct Answer: Nitrogen dioxide
Solution : The correct option is Nitrogen dioxide .
When Lead Nitrate (Pb(NO 3 ) 2 ) is heated, it undergoes thermal decomposition. The reaction can be represented as: Pb(NO 3 ) 2 (s) → PbO(s) + NO 2 (g) + O 2 (g)
When Lead Nitrate (Pb(NO 3 ) 2 ) is heated, it decomposes to form Nitrogen dioxide (NO 2 ), oxygen (O 2 ) and Lead oxide (PbO). So, the gas produced in this reaction is Nitrogen dioxide (NO 2 ).
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