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4 marksElectrochemistry

CSEC Chemistry · January 2015 · Paper 2 · Question 4(a)(ii)

Electrolysis has various applications, including metal extraction and corrosion protection.

Describe what happens during the electrolysis of molten sodium chloride. Support your answer with relevant balanced ionic equations.

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Other parts of this question

  1. 4(a)(i)Define the term 'electrolysis'.[2 marks]
  2. 4(b)Aqueous sodium chloride can be electrolysed using inert electrodes. Discuss the effect that the position of ions in the electrochemical series has on the…[3 marks]
  3. 4(c)Aluminium is made corrosion resistant by anodizing it. Using a labelled diagram and equations, explain what happens during the anodizing of aluminium.[6 marks]

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