Chemistry 0620 · IGCSE · Elements, compounds and mixtures

Elements, compounds and mixtures — practice question

Which one of the statements is correct?

  • ABitumen is used as a fuel for ships.
  • BCoal, natural gas and oxygen are all fuels.
  • CHydrogen is the main constituent of natural gas.
  • DPetroleum is separated into useful substances by fractional distillation.

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