NEET UG CHEMISTRY MCQ: REDOX REACTIONS

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The couple having oxidised and reduced forms of a substance taking part in an oxidation or reduction half-reaction is called

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Correct option: A

redox couple

Option A (redox couple) is correct because a redox couple consists of the oxidized and reduced forms of a substance involved in a half-reaction.

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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}^ + }

\mathrm{Cu}_2 \mathrm{S}

\mathrm{Cu}^{+} \,\&\, \mathrm{SO}_2

\mathrm{Cu}_2 \mathrm{S}

\mathrm{M} / 8\,\left(\mathrm{M}=\mathrm{Mol}\right.

\mathrm{Cu}_2 \mathrm{S}

\mathrm{Cu}^+

\mathrm{Cu}^{++}