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  • Which of the given reactions is not an example of disproportionation reaction ? Option: 1 <img alt="2 \mathrm{H}_{2} \mathrm{O}_{2} \rightarrow

Which of the given reactions is not an example of disproportionation reaction ? 

Option: 1

2 \mathrm{H}_{2} \mathrm{O}_{2} \rightarrow 2 \mathrm{H}_{2} \mathrm{O}+\mathrm{O}_{2}


Option: 2

2 \mathrm{NO}_{2}+\mathrm{H}_{2} \mathrm{O} \rightarrow \mathrm{HNO}_{3}+\mathrm{HNO}_{2}


Option: 3

\mathrm{MnO}_{4}^{-}+4 \mathrm{H}^{+}+3 \mathrm{e}^{-} \rightarrow \mathrm{MnO}_{2}+2 \mathrm{H}_{2} \mathrm{O}


Option: 4

3 \mathrm{MnO}_{4}^{2-}+4 \mathrm{H}^{+} \rightarrow 2 \mathrm{MnO}_{4}^{-}+\mathrm{MnO}_{2}+2 \mathrm{H}_{2} \mathrm{O}


Answers (1)

best_answer

Dispropotion Reaction - It's ortype of redox reaction involving simultaneous oxidation and reduction of the atom of same element into two different oxidation states.

Hence, the correct answer is Option (3).

Posted by

Gunjita

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