Chemistry 0620 · IGCSE · Fertilisers

Fertilisers — practice question

Ammonium sulfate is used as a fertiliser. It is produced from ammonia and sulfuric acid. Which words should be placed in gaps 1, 2 and 3? The .....1..... is produced by the .....2..... process, in which .....3..... is used as a catalyst.

  • Aammonia; Contact; iron
  • Bammonia; Haber; vanadium(V) oxide
  • Csulfuric acid; Contact; vanadium(V) oxide
  • Dsulfuric acid; Haber; iron

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