Chemistry 0620 · IGCSE · Electrolysis

Electrolysis — practice question

Concentrated aqueous sodium chloride and dilute sulfuric acid are each electrolysed with inert electrodes. Which row shows the product formed at the cathode in each electrolysis?

  • Aaqueous sodium chloride: hydrogen; dilute sulfuric acid: oxygen
  • Baqueous sodium chloride: hydrogen; dilute sulfuric acid: hydrogen
  • Caqueous sodium chloride: chlorine; dilute sulfuric acid: oxygen
  • Daqueous sodium chloride: chlorine; dilute sulfuric acid: hydrogen

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