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Give reasons: SO2 is reducing while TeO2 is an oxidising agent. - Chemistry

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Give reasons: SO2 is reducing while TeO2 is an oxidising agent.

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Solution

In case of sulphur, because of the presence of empty d-orbital, it can expand its oxidation state from the + 4 to the +6 oxidation state. Hence, it acts as a reducing agent.

Te is a heavy element and so because of the inert pair effect, the lower oxidation state is more stable. Hence, it acts as an oxidising agent.

Concept: Concept of Group 16 Elements
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