(a)[2]
Describe how the ions are arranged and what kind of attractive forces act between the ions in solid magnesium chloride.
(b)[2]
Explain why solid magnesium chloride is a non-conductor, but aqueous magnesium chloride does conduct electricity.
(c)[2]
State the electronic configuration of the magnesium ion and the chloride ion.
(d(i))[1]
Why are hydrogen ions discharged at the negative electrode instead of sodium ions?
(d(ii))[1]
Construct the equation for the reaction occurring at the negative electrode.
(d(iii))[2]
Describe a test for chlorine. Give both the test and the observation.
(e(i))[1]
Give the formulae of the four ions found in aqueous sodium chloride.
(e(ii))[2]
Suggest why the solution turns alkaline as electrolysis continues.