Consider the half-reaction below

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

Problem

Consider the half-reaction below, which is to be balanced in basic solution.

\text{BrO}_{3}^{-} \rightarrow \text{Br}^{-}

What is the minimum number of electrons that must be added to one side of the equation to achieve charge balance? (a)

5

(b)

6

(c)

7

(d)

8