Question

When $Pb{O}_2$ reacts with conc $HN{O}_3$, the gas evolved is:

• A. NO₂
• B. O₂
• C. N₂
• D. N₂O

Answer 1

The correct option is B

O₂

$Pb{O}_2$ when reacts with nitric acid, it gives $Pb(N{O}_3{)}_2\&$ water and giving out oxygen.

$Pb{O}_2+2HN{O}_3\to Pb(N{O}_3{)}_2+H2O+O_2$