Chemistry 0620 · IGCSE · Hydrogen–oxygen fuel cells

Hydrogen–oxygen fuel cells — practice question

Fuel cells are used as energy sources in cars. Which row gives a fuel used in a fuel cell and the products produced?

  • Ahydrogen; carbon dioxide and water
  • Bhydrogen; water only
  • Cpetrol; carbon dioxide and water
  • Dpetrol; water only

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