What would you observe when zinc is added to a solution of iron $(II) $ sulphate ? Write the chemical reaction that takes place.
Zinc is more reactive than iron. Therefore, if zinc is added to a solution of iron $II$ sulphate, then it would displace iron from the solution.
$\text{Z}{{\text{n}}_{(s)}}\,+\,FeS{{O}_{4(aq)}}\,\to \,ZnS{{O}_{4(aq)}}\,+\,F{{e}_{(s)}}$
Metallic oxides of zinc, magnesium and copper were heated with the following metals.
Metal | Zinc | Magnesium | Copper |
Zinc oxide | - | - | - |
Magnesium oxide | - | - | - |
Copper oxide | - | - | - |
In which cases will you find displacement reactions taking place ?
Give reasons : Sodium, potassium and lithium are stored under oil.
Give an example of a metal which
$(i)$ is a liquid at room temperature.
$(ii)$ can be easily cut with a knife.
$(iii)$ is the best conductor of heat.
$(iv)$ is a poor conduct of heat.
Give reasons : Carbonate and sulphide ores are usually converted into oxides during the process of extraction.
Name two metals which are found in nature in the free state.