Name the oxide which acts as a flux in the blast furnace. 

Name allotropes of a non-metal that allows electricity to pass through it.

Name the substance used to reduce the roasted ore. Write the equation for the reaction.

A to F below relate to the source and extraction of either Zinc or Aluminium.
A. Bauxite
B. Coke
C. Cryolite
D. Froth floatation
E. Sodium hydroxide solution
F. Zinc blende.
Write dowen the three letters each rom the above list which are relevant to:-
 1) Zinc
 2) Aluminium

Is the amount of a carbon in pig/cast iron more than, less than or the same as the amount of carbon in steel?