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2 marksElectrochemistry

CSEC Chemistry · January 2019 · Paper 2 · Question 4(c)(i)

Sodium chloride is a typical salt of sodium metal. A concentrated sodium chloride solution (brine) can undergo electrolysis when it is used as an electrolyte in an electrolytic cell using inert electrodes.

Define the term 'electrolysis'.

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Other parts of this question

  1. 4(a)(i)Define EACH of the following terms: Atomic number[2 marks]
  2. 4(a)(ii)Define EACH of the following terms: Mass number[2 marks]
  3. 4(b)(i)Draw a diagram to show the arrangement of electrons in a sodium atom.[2 marks]
  4. 4(b)(ii)State the period to which the element sodium belongs in the periodic table.[1 mark]
  5. 4(b)(iii)Describe the type of bonding in sodium metal.[2 marks]
  6. 4(c)(ii)Write the half equations, including state symbols, for the reaction that occurs at the anode and cathode during the electrolysis of concentrated sodium…[6 marks]

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