Question

Select correct statement about $C{O}_2,Si{O}_2,Ge{O}_2,Sn{O}_2$ and $Pb{O}_2$ :

• A. $C{O}_2$ and $Si{O}_2$ are acidic, $Sn{O}_2$ is amphoteric and $Pb{O}_2$ is an oxidising agent.
• B. $Pb{O}_2$ is converted to $Pb(N{O}_3{)}_2$ on reaction with $HN{O}_3$.
• C. both (a) and (b) are correct.
• D. none of the above is correct.

Answer 1

The correct option is C both (a) and (b) are correct.

$C{O}_2$ and $Si{O}_2$ are acidic due to electron deficiency.

$Sn{O}_2$ is amphoteric in nature as it can work as acid as well as base.

$Pb{O}_2$ is an oxidising agent because as move down the group oxidation state II become more stable so Pb II is more stable than Pb IV has due to this reason $Pb{O}_2$ has tendency to get electron and works as oxidising agent.