(a) (i) Write an equation for the reaction by which sulphur dioxide in solution could be converted to tetraoxosulphate (VI) acid.

     (ii) State one test to confirm the conversion of sulphur dioxide to tetraoxosulphate (VI) acid.

     (iii) State the reaction of concentrated tetraoxosulphate (VI) acid with:

(I)  oxalic acid;
(II)  copper.

     (iv) What property of concentrated tetraoxosulphate (VI) acid does each of the reactions stated in  (a)(iii) illustrate? 

(b) (i)  Explain briefly why water is referred to as a universal solvent.
(ii)  Give one chemical test for water.  

(c)  (i)  What is the major component of synthetic gas?
      (ii) Give one reason why synthetic gas is not a major source of air pollution.                                                                                                                                                  

(d) Name one product of destructive distillation of coal that is:

(i) solid;
(ii) liquid;
(iii) gas.

(e) (i) Write a balanced chemical equation for the complete combustion of carbon.

(ii) State one:
(I)  physical;
(II) chemical property of the products in  (e)(i).