A-LevelChemistryElectrochemistryFeb/Mar 2023Paper 1 Q71 Mark
Silicon reacts with a mixture of calcium oxide and magnesium oxide at 1200 °C. 2MgO + 2CaO + Si → 2Mg + Ca2SiO4 Which statement about 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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The correct answer is B. This question tests the candidate's understanding of electrochemistry within the Chemistrysyllabus. The examiner's mark scheme requires...
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