The most important use of hydrogen is in the
-
manufacture of ammonia
- manufacture of methyl alcohol
- manufacture of ethyl alcohol
- hydrogenation of oils
The correct answer is: A
Explanation
The most important use of hydrogen is the ammonia synthesis or manufacture of ammonia(Haber process). The use of hydrogen is extending quickly in fuel refinement, like the breaking down by hydrogen (hydrocracking), and in sulphur elimination.