${\rm{MnO}}_4^ - $ is a good oxidising agent in different medium changing to ${\rm{MnO}}_4^ - \to {\rm{M}}{{\rm{n}}^{2 + }}$,$ \to {\rm{MnO}}_4^{2 - }, \to {\rm{Mn}}{{\rm{O}}_2}, \to {\rm{M}}{{\rm{n}}_2}{{\rm{O}}_3}$ Changes in oxidation number respectively are

NEET UG CHEMISTRY MCQ: REDOX REACTIONS

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\mathrm{MnO}_4^ -

is a good oxidising agent in different medium changing to

\mathrm{MnO}_4^ - \to \mathrm{M}{\mathrm{n}^{2 + }}

\to \mathrm{MnO}_4^{2 - }, \to \mathrm{Mn}{\mathrm{O}_2}, \to \mathrm{M}{\mathrm{n}_2}{\mathrm{O}_3}

Changes in oxidation number respectively are

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Correct option: C

5,1,3,4

Option C (5,1,3,4) is correct because the changes in oxidation number of Mn are calculated as 5, 1, 3, and 4 respectively for the given transformations.

More Questions from REDOX REACTIONS

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The oxidation state of iron in sodium nitroprusside is : Titrations in which liberated

{I_2}

is estimated to carry out the volumetric estimations are known as ….titrations. It is found that V forms a double salt isomorphous with Mohr’s salt. The oxidation number of V in this compound is : For redox reaction,

\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}

coefficient of reactants in balanced states are

\mathrm{MnO}_4^ -

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

{\mathrm{H}^ + }

Which one of the following reaction is possible at anode? The couple having oxidised and reduced forms of a substance taking part in an oxidation or reduction half-reaction is called