A gas can be liquified by pressure alone only, when its temperature is __________ its critical temperature.

Question: Consider the production of ammonia from methene and air as raw materials. The catalyst used are: (i) __________ for steam reforming of methane and (ii) __________ for ammonia synthesis.
[A].

i – Ni/Al2O3; ii – Cu – ZnO/Al2O3

[B].

i – Fe/Al2O3; ii – Cu – ZnO/Al2O3

[C].

i – Ni/Al2O3; ii – Fe/Al2O3

[D].

i – Fe/Al2O3; ii – Ni/Al2O3

Answer: Option C

Explanation:

No answer description available for this question.