Chemistry 5070 · O Level · Electrolysis

Electrolysis — practice question

Which statement concerning electrolysis reactions is correct?

  • ABromine is formed at the anode when molten lead bromide is electrolysed.
  • BPositive ions are discharged at the positive electrode.
  • CSodium is formed at the cathode when aqueous sodium chloride is electrolysed.
  • DSulfur dioxide is formed as a gas when dilute sulfuric acid is electrolysed.

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