JEE CHEMISTRY MCQ: REDOX REACTIONS

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Analyzing +4 | -1

Example of disproportionation reaction is

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Correct option: C

{P}_4+{OH}^{-} \longrightarrow {PH}_3+{H}_2 {PO}_2^{-}

Option C (

{P}_4+{OH}^{-} \longrightarrow {PH}_3+{H}_2 {PO}_2^{-}

) is correct because it demonstrates a disproportionation reaction where the same element undergoes both oxidation and reduction.

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\mathrm{H}

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\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.