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Chemistry 5070 · Cambridge (CAIE) O Level
Fertilizers
2 past-paper questions on Fertilizers · examined 2021–2024.
20241 question
5070/11 · M/J · Q32 [1]Sign up to mark my answer →
NPK fertilisers are used to improve plant growth. A solid NPK fertiliser has the properties listed: water soluble, has an aqueous solution with pH 7. Which substances are mixed to make a solid NPK fertiliser?
20211 question
5070/11 · O/N · Q25 [1]Sign up to mark my answer →
In order to decide which would be the better nitrogenous fertiliser, a student calculates the percentage by mass of nitrogen in both ammonium sulfate and ammonium nitrate. Which row gives the correct results?
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