Question

A white substance x is heated and brown colour fumes are evolved and a yellow substane is obtained. write the name of x. write down the chemical reaction and type of chemical reaction
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Answer 1

White substance is lead nitrate ,Pb(NO3)2

2Pb(NO3)2 in heat gives 2 PbO + 4 NO2 + O2

Browse fume is NO2 gas and the Yellow thing is PbO

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