Question

Name the brown colour fumes which is released on heating lead nitrate. Write the balanced chemical equation for reaction

Answer 1

Explanation:

brown fumes are lead oxide

Answer 2

The brown colored fumed formed on heating lead nitrate is nitrogen dioxide

Explanation:

The chemical formula of the given compound which is lead nitrate is $Pb(NO_3)_2$

When lead nitrate is heated, it decomposes into its oxide, a brown gas and also a colorless gas

The chemical equation for the dissociation of lead nitrate follows:

$2Pb(NO_3)_2\rightarrow 2PbO+4NO_2+O_2$

By Stoichiometry of the reaction:

2 moles of lead nitrate decomposes into 2 moles of lead oxide, 4 moles of nitrogen dioxide (brown fumes) and 1 mole of oxygen gas

The brown gas formed is nitrogen dioxide.

Learn more about decomposition of lead nitrate:

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