Nitric acid is an oxidising agent and reacts with PbO but it does not react with PbO_(2). Explain why ?

Nitric acid is an oxidising agent and reacts with PbO but it does not

1.	Nitric acid is an oxidising agent and reacts with PbO but it does not react with PbO_(2). Explain why ?
Answer» Solution :PbO is a base but it reacts with `HNO_(3)` from lead nitrate. `PbO+2HNO_(3)tounderset("soluble")(Pb(NO_(3))_(2))+H_(2)O` Nitric acid does not react with `PbO_(2)` because both act as oxidising agents. In `HNO_(3)` oxidation number of N is (+5) as same `PbO_(2)` oxidation number of Pb is (+4). So, reaction is not possible.