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Question

Which pairs represent conjugate pair of oxidant-reductant or reductant-oxidant in
2ClO2+5H2O2+2OH2Cl+5O2+6H2O.
I. ClO2 and Cl
II. H2O2 and O2
III. Cl4+ and Cl
IV. Cl5+ and Cl

A
I, II, III
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B
I, II, IV
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C
I, II
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D
II, III, IV
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Solution

The correct option is A I, II, III
2ClO2+5H2O2+2OH2Cl+5O2+6H2O
+4 -1 -1 0
Cl4+ and ClO2 is oxidant with conjugate reductant Cl.
O in H2O2 is reductant with conjugate oxidant O2.
Hence, I, II and III represent conjugate pair of oxidant-reductant or reductant-oxidant.

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