BrO3− oxidises I− to I2 and thus, equivalent weight of BrO3− is Mx. Here, x is :
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Solution
BrO−3 oxidizes I− to I2. In this reaction, BrO−3 is reduced to Br−. The oxidation number of bromine changes from +5 to −1. The net change in the oxidation number is 6. Hence, equivalent weight of BrO−3 is M6.