AP EAPCET 06-Jul-2022 Shift 2 Paper

SO2 shows reducing character because +6 oxidation state of S is more stable than its +4 oxidation state.
TeO2 shows oxidising character because its +4 oxidation state is more stable due to inert pair effect.
SO3 and TeO3 do not shows reducing character because S and Te are in +6 oxidation state, which is their highest oxidation state.