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WorksheetsStogs GCSE Interleaving Metals M
Total questions: 15
Worksheet time: 8mins
A cation is:
A neutral atom
A molecule
A positive ion
A negative ion
Cations form when atoms ...
... gain electrons to form negative ions.
... lose electrons to form positive ions.
... gain electrons to form positive ions.
... lose electrons to form negative ions.
More reactive metals form cations ...
... more readily.
... less readily.
Select the most reactive metal from the options below:
Zn
Ag
K
Fe
Select the most reactive metal from the options below:
Zn
Fe
Cu
Al
In displacement reactions ...
... the more reactive metal is displaced from the compound.
... the more reactive metal displaces the less reactive metal from the compound.
Select the displacement reaction from the options below:
2AgNO3 + Cu → Cu(NO3)2 + 2Ag
HCl + KOH → KCl +H2O
2Na + Cl2 → 2NaCl
CaCO3 + 2HCl → CaCl2 + H2O + CO2
Displacement reactions are an example of ...
... neutralisation.
... redox reaction.
... combustion.
... disproportionation reaction.
In redox reactions:
Electrons are lost.
Electrons are gained.
Electrons are lost and gained.
There is no movement of electrons.
Gold is found uncombined in the Earth’s crust because it is...
Unreactive
Reactive
Plentiful
Shiny
Select the metal which must be extracted by electrolysis.
Copper
Aluminium
Iron
Silver
Select the metal which can be extracted by reduction by carbon.
Aluminium
Sodium
Potassium
Iron
Select the metal which is likely to be found uncombined in the Earth’s crust.
Aluminium
Iron
Zinc
Silver
Phytoextraction is the use of:
Bacteria to extract a metal from its ore.
Plants to extract a metal from its ore.
Bioleaching involves using:
Bacteria to extract a metal from its ore.
Plants to extract a metal from its ore.
