Define an alloy and state two reasons for making alloys.
Metallurgy
Original Khojo Papers practice question — not from a past board paper.
bauxite
No citable source has been recorded for this record. Treat it as practice material, not as fact.
Cryolite is added during the electrolysis but is not the ore from which aluminium is extracted.
From the same topic and chapter, at a similar level.
Define an alloy and state two reasons for making alloys.
Metallurgy
Name the constituents and one use of brass, bronze and duralumin.
Metallurgy
In the electrolytic extraction of aluminium, state the role of cryolite and write the reactions at the electrodes.
Metallurgy
Name the chief ore of aluminium and state the process used to purify it.
Metallurgy
What is meant by the dressing of an ore? Name one method used.
Metallurgy
Name the process by which aluminium oxide is obtained pure from bauxite, and write the equations for the two main steps.
Metallurgy