Chemistry 9701 · AS & A Level · Electrochemistry

Electrochemistry — practice question

For the redox equation below, what happens to the oxidation states of vanadium and sulfur? $\text{VO}_2^{+} + \text{SO}_2 \rightarrow \text{V}^{3+} + \text{SO}_4^{2-}$

  • Avanadium: $+1$ to $+3$; sulfur: $0$ to $-2$
  • Bvanadium: $+1$ to $+3$; sulfur: $+4$ to $+6$
  • Cvanadium: $+5$ to $+3$; sulfur: $0$ to $-2$
  • Dvanadium: $+5$ to $+3$; sulfur: $+4$ to $+6$

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