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07/12/2021 10:42 am
Topic starter
In the reaction
3Br2 + 6CO32- + 3H2O → 5Br- + BrO3- + 6HCO3-
(a) bromine is oxidised and carbonate is reduced.
(b) bromine is reduced and water is oxidised
(c) bromine is neither reduced nor oxidised
(d) bromine is both reduced and oxidised
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07/12/2021 10:45 am
Correct answer: (d) bromine is both reduced and oxidised
Explanation:
3Br2 + 6CO32- + 3H2O → 5Br- + BrO3- + 6HCO3-
O.N. of Br2 changes from 0 to -1 and +5 hence it is reduced as well as oxidised.