What is the largest single use of dihydrogen?

Dihydrogen:

• Dihydrogen or hydrogen is the combination of two atoms of hydrogen joined via a covalent bond.
• The molecule is non-polar in nature.

Uses of dihydrogen:

• The largest single use of hydrogen is for ammonia manufacturing.
• The chemical reaction can be depicted as:

${\mathrm{N}}_2\left(\mathrm{g}\right)+3{\mathrm{H}}_2\left(\mathrm{g}\right)\to 2{\mathrm{NH}}_3\left(\mathrm{g}\right)$

• Ammonia helps in the manufacturing of nitrogenous fertilizers.