A) \[{{V}_{2}}{{O}_{5}}\]
B) \[Pt\]
C) \[Fe\]
D) \[Ni{{(CO)}_{4}}\]
Correct Answer: C
Solution :
When nitrogen and hydrogen in the ratio of 1:3 are mixed at high temperature (750 K) and \[200~-\text{ }250\text{ atm}\]pressure and in the presence of Fe and Mo, ammonia is obtained. This process is called Haber?s process. \[{{N}_{2}}(g)+3{{H}_{2}}(g)2N{{H}_{3}}(g)\] In this process finely divided iron (Fe) acts as catalyst and molybdenum (Mo) acts as catalyst promoter.
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