The correct answer is: B. Nitrogen dioxide
When lead nitrate is heated, it decomposes into lead oxide, nitrogen dioxide, and oxygen. The nitrogen dioxide is a reddish brown gas that is released into the air.
Nitric oxide is a colorless gas that is also produced when lead nitrate is heated. However, it is not the gas that is emitted when the compound is heated vigorously.
Dye nitrogen oxide is not a real chemical compound. It is likely a typo for nitrogen dioxide.
Nitrogen pentoxide is a white solid that is not produced when lead nitrate is heated.
Here is a more detailed explanation of the reaction:
Lead nitrate (Pb(NO3)2) decomposes into lead oxide (PbO), nitrogen dioxide (NO2), and oxygen (O2) according to the following equation:
2Pb(NO3)2 â 2PbO + 4NO2 + O2
The nitrogen dioxide is a reddish brown gas that is released into the air. It is a toxic gas that can cause respiratory problems.
The lead oxide is a white solid that is left behind after the reaction. It is a relatively harmless compound.
The oxygen is a colorless gas that is also released into the air. It is a necessary gas for respiration.