Which oxide of sulphur acts as oxidising as well as reducing agent?

SO_2 acts as oxidising and reducing agent.

Oxides of sulphur cause acid rain.

Explain that SO_2 can act as an oxidising agent as well as a reducing agent, but SO_3 can act as an oxidising agent only.

Which is poorest reducing agent?

Give two reactions of each where hydrogen acts as an oxidising agent and reducing agent.

Can PCI_5 act as an oxidising as well as a reducing agent? Justify.

STATEMENT-1 : MnO_(2) can act as an oxidizing agent as well as reducing agent. STATEMENT-2 : Oxidation state of MnO_(2) lies between highest and lowest oxidation state.