The questions in this quiz are suitable for GCSE chemistry students studying the Haber process, what fertilisers are and making ammonium sulfate. If you struggled with the quiz, don't panic - we ...

Iron is a catalyst for the reaction. It increases the rate of the reaction without being used up in the reaction.

Haber on the A award of the Nobel Prize at Stockholm ... soon made it clear that the basis of an important technical process could be found in ammonia synthesis, and further work was undertaken ...