Production And Uses Of Npk Fertilisers (chemistry Only) (GCSE Chemistry)

Which processing acid is used to make “triple superphosphate” (a concentrated P fertiliser) from phosphate rock?

Which of these salts supplies both nitrogen and phosphorus when used as a fertiliser?

Which of the following is a major hazard associated with storing large quantities of ammonium nitrate fertiliser?

Which one of the following is NOT one of the “big three” macronutrients supplied by NPK fertilisers?

Why are some fertilisers described by N-P-K numbers but sold as a “blended” fertiliser rather than a single chemical compound?

Phosphorus fertilisers are commonly made by treating phosphate rock with sulfuric acid. What is the main soluble phosphate product called?

Fertiliser production question: which two gases are reacted in the Haber process to make the ammonia used for N fertilisers?

Which agricultural practice helps reduce nitrate leaching from fields after fertiliser application?

Which calculation gives the approximate mass of potassium in 100 kg of potassium chloride (KCl) if K comprises about 52% by mass?

Which of the following is the correct balanced equation showing production of (single) superphosphate from apatite (simplified) when treated with sulfuric acid?

What is a primary reason farmers might choose a slow-release or coated nitrogen fertiliser over an immediate-release nitric/ammonium fertiliser?