(c) The volume of the gas decreases (rapidly, slowly, regularly) with regular decrease of temperature.
(d) The anhydrous sodium carbonate can be used as a (an) (indicator, catalyst, primary standard)
(e) Faraday’s laws express the (qualitative, quantitative, volumetric) results of electrolysis.
(c) Molarity
(d) Electrolysis
(e) Reduction in terms of oxidation number
(f) A catalyst
) Write the balanced equation in words and symbols for the preparation of aluminium oxide (alumina).
(d) Write down the reactions at the cathode and anode for the electrolysis of dilute sulphuric
Answer any FIVE questions. (20 marks)
(a) What volume at STP of oxygen and what mass of aluminium will be liberated during electrolysis by a
charge of one Faraday?
(b) Write balance equations for the following reactions.
