Bromine is converted to bromate ion,

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

Problem

\text{BrO}_3^-

. The change in oxidation number of bromine is from (1) 0 to

+1

(2) 0 to

+3

(3) 0 to

+5

(4) 0 to

+7