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NEET UG CHEMISTRY MCQ: SOME BASIC CONCEPTS OF CHEMISTRY

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Analyzing +4 | -1
Which of the given reactions is not an example of disproportionation reaction?
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Correct option: C
MnO4−+4H++3e−→MnO2+2H2O\mathrm{MnO}_4^{-}+4 \mathrm{H}^{+}+3 \mathrm{e}^{-} \rightarrow \mathrm{MnO}_2+2 \mathrm{H}_2 \mathrm{O}
Option C is correct because disproportionation involves a single element undergoing both oxidation and reduction, which is not happening in option C where electrons are simply added to MnO4-.

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