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Cambridge IGCSE Chemistry practice

What is produced when calcium oxide reacts with silicon dioxide?

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Show answerExtraction of metals revisionRevise the key idea

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MCQ

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cambridge_mcq

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Topic

Extraction of metals

Exam-style question

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What is produced when calcium oxide reacts with silicon dioxide?.

  1. A.Calcium carbonate
  2. B.Calcium silicate
  3. C.Iron oxide
  4. D.Carbon dioxide

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Paper 4 structured question: Extraction of metals

Paper 4Theory (Extended)1 marks

Description

Chemical Reactions in Iron Extraction

The extraction process includes the following reactions: (a) C + O → CO2 (b) C + CO2 → 2CO (c) Fe2O3 + 3CO → 2Fe + 3CO2 (d) CaCO3 → CaO + CO2 (e) CaO + SiO2 → CaSiO3

  1. a

    State the reaction that produces carbon dioxide from carbon and oxygen.

    Aim for approximately 1 distinct marking point.

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