Question

how will you obtain Ammonia from hydrogen

Answer 1

hi dude

The unreacted hydrogen and nitrogen gases are recycled by being fed back through pipes to pass through the hot iron catalyst beds again. The reaction mixture contains some ammonia, plus a lot of unreacted nitrogen and hydrogen. The mixture is cooled and compressed, causing the ammonia gas to condense into a liquid.

hope it helps

Answer 2

by reacting it with nitrogen in presence of catalyst iron.
hope it helps