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Question

In the following reaction

3Br2 + 6CO32- + 3H2O → 5Br - + BrO3- + 6HCO3-


A

Bromine is oxidized, carbonate is reduced

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B

Bromine is reduced, carbonate is oxidized

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C

Bromine is neither reduced nor oxidized

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D

Bromine is reduced as well as oxidized

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Solution

The correct option is D

Bromine is reduced as well as oxidized


In the oxidation process the oxidation number of bromine changes from 0 (in Br2) to +5 (in BrO3-) and in reduction, oxidation number of bromine changes from 0 (in Br2) to -1 (in Br -).


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