(a(i))[1]
What does the term strong acid mean?
(a(ii))[1]
Describe how you could determine the pH of dilute sulfuric acid.
(b)[2]
Some plants are unable to grow in soils that are too acidic. Describe and explain how soils that are too acidic can be treated so that the acidity is reduced.
(c)[1]
The graph shows how soil pH affects the rate at which plant roots take up potassium ions. Describe how the rate of uptake of potassium ions changes with soil pH.