Chemistry 0620 · IGCSE · Electrolysis

Electrolysis — practice question

When concentrated aqueous sodium chloride is electrolysed with inert electrodes, gases X and Y are produced at the electrodes shown. What are X and Y?

  • AX: chlorine; Y: hydrogen
  • BX: hydrogen; Y: chlorine
  • CX: hydrogen; Y: oxygen
  • DX: oxygen; Y: hydrogen

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