Is PbO2 As-- Pb2 AsO2 oxidized or reduced?

In the reaction involving PbO2 and Pb2 AsO2, PbO2 acts as an oxidizing agent because lead (Pb) in PbO2 is in the +4 oxidation state. When it is converted to Pb2 AsO2, the lead is reduced to a lower oxidation state, typically +2. Therefore, PbO2 is reduced in this process, while Pb2 AsO2 is oxidized.