(a) What is an electrochemical cell?

(b) State three differences between an electrochemical cell and an electrolytic cell.

(c) Explain briefly what would be observed when powdered zinc is added to a solution of copper (II) tetraoxosulphate (IV) in a beaker.

d(i) Write an equation for the reaction in 1(c);

 (ii) State the type of reaction which took place in 1(c);

(e) Name two gases which should be prepared in a fume chamber.

(f) Give three factors that favour cracking.

(g) Give the reason why noble gases are chemically inert.

(h) State four properties of a homologous series.

(i) What is global warming?

(j)State one cause of global warming.