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
1) Zinc: Froth floatation, Coke, Zinc blende.
2) Aluminium: Bauxite, Cryolite, sodium hydroxide solution.
Name the substance used to reduce the roasted ore. Write the equation for the reaction.
Coke is used to reduce the roasted ore.
Equation:-
ZnO +C --> Zn +CO
Is the amount of a carbon in pig/cast iron more than, less than or the same as the amount of carbon in steel?
The amount of carbon in pig/cast iron is more than as the amount of carbon in steel.
Name allotropes of a non-metal that allows electricity to pass through it.
Graphite is allotropes of carbon. It allows electricity to pass through.
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