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Which substance is the yellow solid residue formed on thermal decomposition of lead nitrate?

Answer and explanation

Correct answer: Lead oxide

On heating, lead nitrate decomposes as \(2\mathrm{Pb(NO_3)_2} \xrightarrow{\Delta} 2\mathrm{PbO} + 4\mathrm{NO_2} + \mathrm{O_2}\). The \(\mathrm{PbO}\) formed is the yellow solid residue. Lead chloride, sulphate, or carbonate would require chloride, sulphate, or carbonate ions respectively, none of which are present in this reaction.

Related tags

Chemical ReactionsThermal DecompositionLead NitrateLead OxideClass 10 Science

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