Iron and aluminium are extracted from their ores in different ways because the metals have different reactivities. Metals are used for different purposes, depending on their properties.
What is the advantage of using carbon, rather than electrolysis, to extract a metal from its ore?
It makes a purer product
It is cheaper
It is better for the environment
Copper is produced from copper(II) oxide. What type of process is this?
Slag forms as a waste product in the production of iron. What is slag?
What are the electrodes made from in the extraction of aluminium?
What is the physical state of the electrolyte in the extraction of aluminium?
What are the electrode products in the extraction of aluminium?
Cathode = oxygen - anode = aluminium
Cathode = aluminium - anode = chlorine
Cathode = aluminium - anode = oxygen
What property is most important for aluminium being used to make aircraft?
Good conductor of electricity
Copper is an excellent conductor of electricity. What use of copper depends on this property?
What is the name of the process that uses plants to extract metals from an ore?
Which of these is a disadvantage of bioleaching?
It produces sulfuric acid as a by-product
It produces carbon dioxide as a by-product
It leaves large holes in the ground