Which of the following acts as both an oxidiz | vedclass

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(B) In $SO_2$,the oxidation state of sulfur is $+4$. Sulfur can be oxidized to $+6$ (e.g.,in $SO_3$ or $H_2SO_4$) and reduced to $0$ (e.g.,in $S$). Th

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$SO_2$

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(B) In $SO_2$,the oxidation state of sulfur is $+4$. Sulfur can be oxidized to $+6$ (e.g.,in $SO_3$ or $H_2SO_4$) and reduced to $0$ (e.g.,in $S$). Therefore,$SO_2$ can act as both an oxidizing agent and a reducing agent. $H_2SO_4$ acts only as an oxidizing agent because sulfur is in its maximum oxidation state $(+6)$. $H_2S$ acts only as a reducing agent because sulfur is in its minimum oxidation state $(-2)$. $HNO_3$ acts only as an oxidizing agent because nitrogen is in its maximum oxidation state $(+5)$.

Which of the following acts as both an oxidizing and a reducing agent?

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