2 g of lead, nitrate powder is taken in a boiling tube. The boiling tube is heated over a flame. Now answer the following :

Monjur Alahi

2 g of lead, nitrate powder is taken in a boiling tube. The boiling tube is heated over a flame. Now answer the following :

(i) State the colour of the fumes evolved and the residue left.

(ii) Name the type of chemical reaction that has taken place, stating its balanced equation.


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Salim Ahmed Kawsar

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(i) Brown fumes. white residue.

(ii) Decomposition reaction 

2Pb(NO3)2 →2PbO+4NO2+O2

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