JEE CHEMISTRY MCQ: REDOX REACTIONS

1 Medium

1 of 1

Application +4 | -1

Which of the following is the cell reaction that occurs when the following half - cells are combined?

\begin{aligned} & \mathrm{I}_2+2 \mathrm{e}^{-} \rightarrow 2 \mathrm{I}^{-}(1\,\mathrm{M}) ; \mathrm{E}^{\circ}=+0.54 \mathrm{~V} \\ & \mathrm{Br}_2+2 \mathrm{e}^{-} \rightarrow 2 \mathrm{Br}^{-}(1\,\mathrm{M}) ; \mathrm{E}^{\circ}=+1.09 \mathrm{~V} \end{aligned}

View answer and explanation

Correct option: C

2 \mathrm{I}^{-}+\mathrm{Br}_2 \rightarrow \mathrm{I}_2+2 \mathrm{Br}^{-}

Option C (

2 \mathrm{I}^{-}+\mathrm{Br}_2 \rightarrow \mathrm{I}_2+2 \mathrm{Br}^{-}

) is correct because Bromine has a higher reduction potential and will be reduced, while Iodide will be oxidized.

More Questions from REDOX REACTIONS

Practice All Chapter MCQs →

\mathrm{H}

2 \mathrm{KClO}_3 \longrightarrow 2 \mathrm{KCl}+3 \mathrm{O}_2

\mathrm{HNO}_3

\mathrm{HNO}_3

\mathrm{MnO}_4^{-}(\mathrm{aq})+\mathrm{Br}^{-}(\mathrm{aq})+\mathrm{H}_2 \mathrm{O} \longrightarrow 2 \mathrm{MnO}_2(\mathrm{aq})+\mathrm{BrO}_3^{-}(\mathrm{aq})+2 \mathrm{OH}^{-}(\mathrm{aq})

\mathrm{Br}

-1

+5.