In basic medium, ${H_2}{O_2}$ exhibits which of the following reactions? A) $M{n^{2 + }} \to M{n^{4 + }}$ $\,\,\,\,\,\,\,\,\,\,$ B) ${I_2} \to {I^ - }$ $\,\,\,\,\,\,\,\,\,\,\,$ C) $PbS \to PbS{O_4}$ Choose the most appropriate answer from the options given below.

NEET UG CHEMISTRY MCQ: REDOX REACTIONS

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Analyzing +4 | -1

In basic medium,

{H_2}{O_2}

exhibits which of the following reactions?
A)

M{n^{2 + }} \to M{n^{4 + }}

\,\,\,\,\,\,\,\,\,\,

{I_2} \to {I^ - }

\,\,\,\,\,\,\,\,\,\,\,

PbS \to PbS{O_4}

Choose the most appropriate answer from the options given below.

View answer and explanation

Correct option: D

A and B

Option D (A and B) is correct because H2O2 can act as both an oxidizing and reducing agent in basic medium, oxidizing Mn2+ to Mn4+ and reducing I2 to I-.

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