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10.4 The Haber process and the use of NPK fertilisers

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Question 11
F

Potassium chloride, potassium sulfate and phosphate rock are all obtained by mining. Phosphate rock cannot be used directly as a fertiliser.

a.

Name the element that potassium chloride and potassium sulfate supply to a fertiliser.

[1]
b.

Explain why phosphate rock cannot be used directly as a fertiliser.

[2]
c.

Name the two salts produced when phosphate rock is treated with sulfuric acid.

[2]
d.

Name the salt produced when phosphate rock is treated with phosphoric acid.

[1]
Markscheme

10.4 The Haber process and the use of NPK fertilisers Questions

  1. GCSE
  2. /Chemistry
  3. /10.4 The Haber process and the use of NPK fertilisers

39 exam-style questions on AQA GCSE Chemistry 10.4 The Haber process and the use of NPK fertilisers, covering 10.4.1a The Haber process, 10.4.1b Equilibrium and rate in the Haber process, and 10.4.2 Production and uses of NPK fertilisers. Each one has a worked solution and a mark scheme showing where the marks go.

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