Compound that acts as oxidant as well as reductant is:

S O_{2}

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C r O_{3}

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S O_{3}

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A l_{2} O_{3}

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Solution

The correct option is A $S O_{2}$
In $S O_{2}$ , the oxidation state of sulfur is $- 4$ .
It is between lowest ( $- 2$ ) and highest ( $+ 6$ ) oxidation states.
Thus, sulfur atom in $S O_{2}$ can either accept or lose electrons.
Hence, it can act as oxidant as well as reductant.

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Similar questions

S O_{2}

The chemical reaction involved in the corrosion of iron metal is that of :

(a) oxidation as well as displacement (b) reduction as well as combination

2 C u S O_{4} + S O_{2} + 2 K B r + 2 H_{2} O \to 2 C u B r + 2 H_{2} S O_{4} + K_{2} S O_{4}

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