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Chemistry · Oct / Nov 2023 · Paper 11 · Question 3

5070Elements, compounds and mixtures

Substances can be elements, compounds or mixtures. Which row is correct?

  1. Acopper; brass; zinc
  2. Bmethane; carbon; petroleum
  3. Cnitrogen; carbon dioxide; water vapour
  4. Doxygen; glucose; air

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Correct answer: D. oxygen; glucose; air

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