NEET UG CHEMISTRY MCQ: REDOX REACTIONS

1 Hard

1 of 1

Analyzing +4 | -1

All the following can undergo disproportion except

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Correct option: A

MnO_4^ -

Option A (

MnO_4^ -

) is correct because Mn in

MnO_4^ -

is in its highest oxidation state (+7), and therefore cannot be further oxidized, preventing it from undergoing disproportionation.

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{I_2}

\mathrm{MnO}_4^ - + {\mathrm{C}_2}\mathrm{O}_4^{2 - } + {\mathrm{H}^ + } \to \mathrm{M}{\mathrm{n}^{2 + }} + \mathrm{C}{\mathrm{O}_2} + {\mathrm{H}_2}\mathrm{O}

\mathrm{MnO}_4^ -

{\mathrm{C}_2}\mathrm{O}_4^{2 - }

{\mathrm{H}^ + }