NEET UG CHEMISTRY MCQ: REDOX REACTIONS

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Analyzing +4 | -1

Statement-I: Oxidation state of Sulphur in

\mathrm{H}_2 \mathrm{SO}_3

is +6.

Statement-II: Maximum oxidation state of

\mathrm{S}

is +5.

View answer and explanation

Correct option: B

Both the statements are incorrect

Both statements are incorrect. The oxidation state of sulfur in H₂SO₃ is +4, and the maximum oxidation state of sulfur is +6.

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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}^ + }