Chemistry 0620 · IGCSE · Hydrogen–oxygen fuel cells

Hydrogen–oxygen fuel cells — practice question

Hydrogen-oxygen fuel cells can be used to drive vehicles. Which statement concerning hydrogen-oxygen fuel cells is correct?

  • A$\text{H}_2 + \text{O}_2 \rightarrow \text{H}_2\text{O}_2$
  • BThe only chemical products are water and carbon dioxide.
  • CChemical energy in the fuel is converted into electrical energy.
  • DThe hydrogen used in hydrogen-oxygen fuel cells is a fossil fuel.

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