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2 marksElectrochemistry

CSEC Chemistry · January 2020 · Paper 2 · Question 4(a)(i)

Jack investigated the electrolysis of concentrated sodium chloride solution.

Identify TWO ions present in the electrolyte and include their state symbols.

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Other parts of this question

  1. 4(a)(ii)State TWO factors that affect the discharge of an ion in the electrolyte during electrolysis.[2 marks]
  2. 4(a)(iii)Predict which ions present in the electrolyte will be attracted towards the anode.[2 marks]
  3. 4(a)(iv)Write a balanced equation for the reaction at the anode.[2 marks]
  4. 4(a)(v)Write a balanced equation for the reaction at the cathode.[2 marks]
  5. 4(b)State whether EACH of the substances given in Table 2 are classified as conductors or non-conductors.[3 marks]
  6. 4(c)Carbon is an example of a non-metal. State TWO uses of carbon.[2 marks]

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