JEE CHEMISTRY MCQ: REDOX REACTIONS

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Application +4 | -1

For the balanced redox reaction.

{aMnO}_4^{-}+{bH}_2 {O}_2+{cH}^{+} \rightarrow {dMn}^{2 +}+{eO}_2+{fH}_2 {O}

the value of

a, b, c

and

e

respectively are

View answer and explanation

Correct option: B

2,5,6,5

The correct answer is

2, 5, 6, 5

. Balancing the redox reaction requires determining the correct stoichiometric coefficients to ensure both mass and charge are conserved.

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\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.