Which is the best description of the behaviour of bromine in the reaction given below? $\mathrm{H}_2…
Which is the best description of the behaviour of bromine in the reaction given below?
$\mathrm{H}_2 \mathrm{O}+\mathrm{Br}_2 \rightarrow \mathrm{HOBr}+\mathrm{HBr}$
Proton acceptor only
Both oxidised and reduced
Oxidised only
Reduced only
Solution
In the given reaction, the oxidation number of bromine increases from 0 to +1 and decreases from 0 to -1 .
Due to this reason bromine is both oxidised as well as reduced.
$: \mathrm{H}_2 \mathrm{O}+\stackrel{0}{\mathrm{Br}_2} \longrightarrow \mathrm{HOBr}+\mathrm{HBr}^{-1}$
Caution
Some students understood that the given reaction is redox reaction, but confuse with fact that redox reaction is the reaction in both oxidation and reduction occurs.