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Chemistry · May / June 2020 · Paper 11 · Question 20

5070The mole and the Avogadro constant

Nitrogenous fertilisers promote plant growth and crop yield. Which compound contains the greatest mass of nitrogen in 100 g of fertiliser?

  1. AKNO3
  2. BNH4NO3
  3. C(NH4)2SO4
  4. D(NH4)2HPO4

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Correct answer: B. NH4NO3

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