Question
Download Solution PDFWhen lead nitrate is heated, lead oxide, oxygen gas and a brown mysterious gas are formed. What is that mysterious gas?
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFKey Points
- Nitrogen dioxide (NO2) is the mysterious brown gas formed when lead nitrate is heated.
- The chemical reaction involved is:
2Pb(NO3)2 (s) → 2PbO (s) + 4NO2 (g) + O2 (g)
- Lead nitrate decomposes to form lead oxide, nitrogen dioxide, and oxygen gas upon heating.
- Nitrogen dioxide is a toxic gas and is characterized by its brown color.
Additional Information
- Lead nitrate is a chemical compound with the formula Pb(NO3)2.
- It is commonly used in the manufacture of matches and explosives, and in the dyeing and printing of textiles.
- Decomposition of lead nitrate is an example of a thermal decomposition reaction.
- Safety precautions should be taken when heating lead nitrate due to the release of toxic gases.
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