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.
$\text{Z}{{\text{n}}_{(s)}}\,+\,FeS{{O}_{4(aq)}}\,\to \,ZnS{{O}_{4(aq)}}\,+\,F{{e}_{(s)}}$
Give reasons why copper is used to make hot water tanks and not steel (an alloy of iron).
Which of the following methods is suitable for preventing an iron frying pan from rusting ?
Give reasons : Sodium, potassium and lithium are stored under oil.
Define the following terms.
$(i)$ Mineral $(ii)$ Ore $(iii)$ Gangue
Give reasons : Carbonate and sulphide ores are usually converted into oxides during the process of extraction.