Question

Hydrogen, along with nitrogen is used in the manufacture of __________ gas.

Answer 1

Hydrogen combines with nitrogen in the ratio of 3:1 by volume at 450°C temperature and 200 atmospheric pressure in the presence of iron as a catalyst, to form a pungent-smelling colourless gas called ammonia.

$$\begin{gathered} {\mathrm{N}}_2\left(\mathrm{g}\right)+3{\mathrm{H}}_2\left(\mathrm{g}\right)\to 2{\mathrm{NH}}_3\left(\mathrm{g}\right) \\ \mathrm{Nitrogen}\mathrm{Hydrogen}\mathrm{Ammonia} \end{gathered}$$

Therefore, hydrogen along with nitrogen is used in the manufacture of ammonia gas.