Question

Lead (IV) oxide is obtained by:

• A. heating lead (II) oxide strongly in air.
• B. heating lead strongly in pure oxygen.
• C. oxidizing lead with conc.$HN{O}_3$.
• D. heating ${Pb}_3{O}_4$ with conc. $HN{O}_3$.

Answer 1

The correct option is A heating lead (II) oxide strongly in air.

Lead(IV) oxide ($Pb{O}_2$) is a corrosion product that can develop on lead pipes used for drinking water supply, and its stability can control lead concentrations in tap water. It is obtained by heating lead (II) oxide strongly in air. If we heat lead(II) in heating lead strongly in pure oxygen, then impurity will not come and no corrosion will take place.

Reacting $P{b}_3{O}_4$ with dilute $HN{O}_3$ also produce Lead(IV) oxide .