Which of the following behaves as both an oxi | vedclass

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(B) In $SO_2$,sulphur has an oxidation state of $+4$. Since the maximum oxidation state of sulphur is $+6$ and the minimum is $-2$,it can be oxidised

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$SO_2$

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(B) In $SO_2$,sulphur has an oxidation state of $+4$. Since the maximum oxidation state of sulphur is $+6$ and the minimum is $-2$,it can be oxidised to $+6$ or reduced to $-2$. Thus,$SO_2$ can act as both an oxidising and a reducing agent.In $H_2SO_4$,sulphur is in its highest oxidation state of $+6$,so it can only act as an oxidising agent.In $H_2S$,sulphur is in its lowest oxidation state of $-2$,so it can only act as a reducing agent.In $HNO_3$,nitrogen is in its highest oxidation state of $+5$,so it can only act as an oxidising agent.

Which of the following behaves as both an oxidising and a reducing agent?

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