Which one of the following reducing agents can also act as an oxidising agent ........

General Science (Easy) Chemistry

Which one of the following reducing agents can also act as an oxidising agent?

H₂

H₂S

SO₂

Substance can acts as both oxidizing as well as reducing agent when a metal atom is present in its intermediate step.

O3? can acts as only oxidizing agent due to its unstable nature and decomposes to give nascent oxygen.

HNO3?:Nitrogen is present in its highest oxidation state i.e.,+5 so it can act as only oxidizing agent.

SO2?:Sulphur is present in +4 oxidation state so it can act as both oxidizing as well as reducing agent.

H2?O2?:Oxygen is present in -1 oxidation state so it can act as both oxidizing as well as reducing agent.

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