Disproportionation | d and f Block Elements |JEE-MAIN-2022

JEE MAIN 2022

26-6-22_S2

Question

Which one of the following is an example of disproportionation reaction?

Select the correct option:

$3 \mathrm{MnO}_4^{2-}+4 \mathrm{H}^{+} \rightarrow 2 \mathrm{MnO}_4^{-}+\mathrm{MnO}_2+2 \mathrm{H}_2 \mathrm{O} \mid$

$\mathrm{MnO}_4^{2-}+4 \mathrm{H}^{+}+4 \mathrm{e}^{-} \rightarrow \mathrm{MnO}_2+2 \mathrm{H}_2 \mathrm{O}$

$1 \mathrm{OI}^{-}+2 \mathrm{MnO}_4^{-}+16 \mathrm{H}^{+} \rightarrow 2 \mathrm{Mn}^{2+}+8 \mathrm{H}_2 \mathrm{O}+5 \mathrm{I}_2$

$8 \mathrm{MnO}_4^{-}+2 \mathrm{~S}_2 \mathrm{O}_3^{2-}+\mathrm{H}_2 \mathrm{O} \rightarrow 8 \mathrm{MnO}_2+6 \mathrm{SO}_4^{2+}+2 \mathrm{OH}^{-}$

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Solution

Question Tags

JEE Main

Chemistry

Easy

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