Fertilisers
10.2What the syllabus asks of you
- State that ammonium salts and nitrates are used as fertilisers
- Describe the use of NPK fertilisers to provide the elements nitrogen, phosphorus and potassium for improved plant growth
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Chapter 10: Fertilisers
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Every question on Fertilisers, untimed, marked as you go.
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8 questions
1May / June 2026 · Paper 11 · Q29Show mark scheme →
Aammonium nitrate and calcium phosphate
Bcalcium phosphate and potassium sulfate
Cpotassium nitrate and calcium phosphate
Dpotassium sulfate and ammonium sulfate
Mark scheme
2Oct / Nov 2024 · Paper 12 · Q32Show mark scheme →
Adeoxygenation of water; damage to aquatic life
Bdeoxygenation of water; addition of nitrogen to the air
Cimproved plant growth; damage to aquatic life
Dimproved plant growth; addition of nitrogen to the air
Mark scheme
3May / June 2024 · Paper 11 · Q32Show mark scheme →
Aammonium nitrate, potassium sulfate and phosphorus oxide
Bammonium phosphate and potassium hydroxide
Cammonium sulfate, calcium nitrate and sodium phosphate
Dpotassium nitrate and sodium phosphate
Mark scheme
4Oct / Nov 2023 · Paper 12 · Q31Show mark scheme →
Aammonium nitrate: 1, potassium nitrate: 1, potassium phosphate: 1, sodium phosphate: 2
Bammonium nitrate: 1, potassium nitrate: 2, potassium phosphate: 2, sodium phosphate: 1
Cammonium nitrate: 2, potassium nitrate: 1, potassium phosphate: 1, sodium phosphate: 2
Dammonium nitrate: 2, potassium nitrate: 2, potassium phosphate: 2, sodium phosphate: 1
Mark scheme
5Oct / Nov 2020 · Paper 11 · Q26Show mark scheme →
Aaqueous ammonia, NH3(aq) | yes | lowers the pH of the soil
Bammonium carbonate, (NH4)2CO3 | no | is insoluble in water
Cammonium chloride, NH4Cl | yes | is made from the products of the Haber process and the Contact process
Dammonium nitrate, NH4NO3 | yes | is soluble in water
Mark scheme
6Oct / Nov 2019 · Paper 11 · Q21Show mark scheme →
AIt contains nitrogen and phosphorous which are essential constituents of plant protein.
BIt contains nitrogen to promote plant growth and is soluble in water.
CIt contains sulfate ions which changes the pH of the soil.
DIt contains sulfate ions and forms ammonia when lime is added to the soil.
Mark scheme
7Oct / Nov 2017 · Paper 11 · Q25Show mark scheme →
A1 2 4 3 5
B1 2 5 4 3
C1 5 2 3 4
D1 5 3 4 2
Mark scheme
8Oct / Nov 2016 · Paper 11 · Q29Show mark scheme →
Aammonium sulfate
Bbarium carbonate
Ccalcium hydroxide
Dlead chloride
Mark scheme