NEET UG CHEMISTRY MCQ: REDOX REACTIONS

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A substance, that by its sharp colour change indicates the completion of reaction is known as :

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Correct option: C

Indicator

Option C (Indicator) is correct because an indicator is a substance that changes color sharply at the endpoint of a reaction, signaling completion.

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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}^ + }