Chemistry 5070 · O Level · Electrolysis

Electrolysis — practice question

Concentrated aqueous calcium iodide is electrolysed in much the same way as concentrated aqueous sodium chloride. What would be produced at each electrode?

  • Aproduct at positive electrode: iodine; product at negative electrode: calcium
  • Bproduct at positive electrode: iodine; product at negative electrode: hydrogen
  • Cproduct at positive electrode: oxygen; product at negative electrode: calcium
  • Dproduct at positive electrode: oxygen; product at negative electrode: hydrogen

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