1. About 2g of lead nitrate is heated in a boiling tube. Brown fumes were seen coming out of the tube. Answer the following questions: a. Identify the brown fumes. b. What type of reaction is this? c. Write the balanced chemical equation for the above reaction.
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a. brown fumes are of NO2 gas evolved
b. it is a decimposition reaction( thermal decomposition)
c. lead nitrate on heating gives lead oxide , Nitrogen dioxide and oxygen
2Pb(NO3)2=2PbO + 4NO2 + O2
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