Chemistry 9701 · AS & A Level · Electrochemistry

Electrochemistry — practice question

When solid sodium iodide is treated with concentrated sulfuric acid, the products formed are NaHSO$_4$, H$_2$S, SO$_2$ and S. During the formation of which product does sulfur’s oxidation state change by 8?

  • AH$_2$S
  • BNaHSO$_4$
  • CS
  • DSO$_2$

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