Chemistry 9701 · AS & A Level · Electrochemistry

Electrochemistry — practice question

Silicon reacts with a blend of calcium oxide and magnesium oxide at $1200\,^\circ\text{C}$. $2\text{MgO} + 2\text{CaO} + \text{Si} \rightarrow 2\text{Mg} + \text{Ca}_2\text{SiO}_4$ Which statement concerning this reaction is correct?

  • ACalcium is reduced and silicon is neither oxidised nor reduced.
  • BMagnesium is reduced and calcium is neither oxidised nor reduced.
  • CMagnesium is reduced and silicon is neither oxidised nor reduced.
  • DSilicon is reduced and calcium is neither oxidised nor reduced.

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