WorksheetsTopic 3 - Metals
Total questions: 10
Worksheet time: 7mins
The method used to extract a metal from its ore depends on the strength of the metal.
True
False
Copper will displace magnesium from magnesium sulphate.
False
True
Cryolite is used in the extraction of aluminium to (a) the melting point of aluminium oxide
Aluminium ore contains aluminium oxide which has the formula AlO.
True
False
The gas used to reduce iron oxide in the blast furnace
carbon
oxygen
carbon monoxide
carbon dioxide
iron sulphate + zinc --->
zinc sulphate + iron
zinc sulphate
iron sulphate + zinc
iron + zinc + sulphate
An example of a cation
O2-
OH-
Na+
Cl-
Ionic compounds are melted in electrolysis so the ions are (a)
Two metals that can be extracted by reduction with carbon
aluminium and lead
lead and zinc
sodium and calcium
magnesium and gold
The breakdown of a compound into its separate elements is called
electrolyte
reduction
oxidation
electrolysis
