Question

With reference to the uses of hydrogen, give reason for the following:

Reaction of hydrogen with nitrogen under specific conditions finds industrial utility.

Answer 1

One vol. of N₂ and 3 vol. of H₂ in presence of a catalyst (finely divided iron) at 450-500°C and at 200-900 mm pressure forms basic compound ammonia [NH₃] which finds applications in fertilizers and nitric acid [HNO₃] and explosives.