Chemistry 5070 · O Level · Identification of ions and gases
Identification of ions and gases — practice question
Farmers apply fertilisers such as ammonium sulfate to the soil so that plant growth happens more quickly.
(a)[2]
State the formulae of the ions found in ammonium sulfate.
(b)[2]
Describe how to test for ammonium ions.
test [BLANK]
observation [BLANK]
(c)[1]
As ammonia dissolves in water, ammonium ions and hydroxide ions are formed. Write the ionic equation for how aqueous ammonia reacts with sulfuric acid.
Worked solution & mark scheme
This 5-mark question has a full step-by-step worked solution and mark scheme. One marking point: “ammonium ion, NH₄⁺” …