Which element is reduced in the following reaction?

CHEMISTRY · Single correct · A Level · Chemistry · Oxidation, reduction and redox reactions · Oxidation, reduction and redox reactions

Problem

Which element is reduced in the following reaction? 2MnO4−(aq)+Br−(aq)+H2O(l)→2MnO2(s)+BrO3−(aq)+2OH−(aq)2\mathrm{MnO_4^-}(\mathrm{aq})+\mathrm{Br^-}(\mathrm{aq})+\mathrm{H_2O}(\mathrm{l})\rightarrow2\mathrm{MnO_2}(\mathrm{s})+\mathrm{BrO_3^-}(\mathrm{aq})+2\mathrm{OH^-}(\mathrm{aq}) (1) Mn (2) O (3) Br (4) H

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