Chemistry 0620 · IGCSE · Fertilisers

Fertilisers — practice question

Which pair of compounds can be combined to make an NPK fertiliser?

  • Aammonium phosphate and calcium hydroxide
  • Bcalcium phosphate and ammonium nitrate
  • Cpotassium nitrate and calcium oxide
  • Dpotassium phosphate and ammonium nitrate

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