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Chemistry · May / June 2026 · Paper 11 · Question 29

5070Fertilisers

NPK fertilisers are used to provide three elements for improved plant growth. Which mixture of compounds contains all three of these elements?

  1. Aammonium nitrate and calcium phosphate
  2. Bcalcium phosphate and potassium sulfate
  3. Cpotassium nitrate and calcium phosphate
  4. Dpotassium sulfate and ammonium sulfate

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Correct answer: C. potassium nitrate and calcium phosphate

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