Question detail
What are the two main potassium compounds that are obtained by mining for use in fertilisers?
Try the question, check the answer, then read the explanation to understand the curriculum point.
At a glance
Question
Type
exam_style
Style
Topic
The Haber process and the use of NPK fertilisers
Question
What are the two main potassium compounds that are obtained by mining for use in fertilisers?
Answer
The two main potassium compounds obtained by mining for use in fertilisers are potassium chloride and potassium sulfate.
Explanation
A strong answer should directly address the approved learning objective to recall that potassium chloride and potassium sulfate are obtained by mining. (Chemistry only). This question belongs to Production and uses of NPK fertilisers within The Haber process and the use of NPK fertilisers, so the response should use that exact curriculum context rather than a generic statement. The answer is correct when it names the key idea, explains the link to chemistry only, and keeps the wording specific to AQA GCSE revision.
Common mistake
Confusing Sources of Potassium
Students often confuse potassium chloride and potassium sulfate as being obtained from different sources rather than both being mined.
Remember that both potassium chloride and potassium sulfate are obtained through mining processes.
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