Chemistry 0620 · IGCSE · Elements, compounds and mixtures

Elements, compounds and mixtures — practice question

Details for four substances E, F, G and H are given. E, F, G and H are graphite, poly(ethene), sodium chloride and silicon(IV) oxide, but not necessarily in that order. Which substances are E, F, G and H?

  • AE: graphite, F: poly(ethene), G: silicon(IV) oxide, H: sodium chloride
  • BE: sodium chloride, F: graphite, G: poly(ethene), H: silicon(IV) oxide
  • CE: poly(ethene), F: sodium chloride, G: graphite, H: silicon(IV) oxide
  • DE: silicon(IV) oxide, F: graphite, G: poly(ethene), H: sodium chloride

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