NEET UG CHEMISTRY MCQ: REDOX REACTIONS

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Analyzing +4 | -1

Which of the following arrangements represent increasing oxidation number of the central atom

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Correct option: A

CrO_2^ - ,\,ClO_3^ - ,CrO_4^{2 - },MnO_4^ -

Option A (

CrO_2^ - ,\,ClO_3^ -,CrO_4^{2 - },MnO_4^ -

) is correct because it represents the increasing order of oxidation numbers of the central atoms: Cr(+3), Cl(+5), Cr(+6), Mn(+7).

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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}^ + }