Is Hydrogen gas flammable?

Yes, hydrogen gas is highly flammable. It is one of the most flammable substances known to us. Hydrogen gas can ignite and burn in the presence of oxygen, and it has a wide flammability range. This means that hydrogen can ignite at a wide range of concentrations in air, from about 4% to 75% hydrogen by volume.

When hydrogen gas burns, it produces a flame that is almost invisible to the naked eye, which can make it particularly dangerous. Despite its flammability, hydrogen is used in various industrial processes and applications, including as a fuel for hydrogen fuel cells, but strict safety precautions are necessary when handling and storing hydrogen to prevent accidents and explosions.