Fertilisers
8 past-paper questions on Fertilisers · examined 2020–2025.
20251 question
Nitrates and ammonium salts are used as fertilisers. Which fertiliser contains the greatest mass of nitrogen in 50 kg of the compound?
20244 questions
Sodium phosphate, Na3PO4, and ammonium nitrate, NH4NO3, are both used as fertilisers. Which row shows the correct percentage by mass of the element in each compound that improves plant growth?
Which fertiliser contains the highest percentage by mass of nitrogen?
Ammonium phosphate, (NH4)3PO4, may be used as a fertiliser. What is the percentage by mass of elements that improve plant growth in ammonium phosphate?
Which row describes an advantage and a disadvantage of fertilisers?
20203 questions
Nitrogenous fertilisers promote plant growth and crop yield. Which compound contains the greatest mass of nitrogen in 100 g of fertiliser?
Some compounds containing nitrogen are used as fertilisers. Which row is correct?
Some compounds containing nitrogen are used as fertilisers. Which row is correct?
Go Pro to download this chapter as a topical PDF and search by AI.
Don't just read the solution — get your own answer marked
Write your answer to any Chemistry past-paper question, photograph it, and Learning DEN marks it like a real examiner — marks awarded, where you lost them, and your predicted grade. 3 free gradings to start.