Question

Hydrogen is\[\_\] but it does not support $\_$$?$

Answer 1

Hint: Hydrogen is highly flammable; it only takes a small amount of energy to ignite it and make it burn. It also has a wide flammability range, meaning it can burn when it makes up $4$ to $74$ percent of the air by volume. The combustion of hydrogen does not produce carbon dioxide, particulate, or sulfur emissions.

Complete answer:
Hydrogen is a very combustible element in the presence of oxygen, but it does not support combustion as oxygen does.
In a flame of pure hydrogen gas, burning in air, the hydrogen reacts with oxygen to form water and releases energy. If carried out in atmospheric air instead of pure oxygen, as is usually the case, hydrogen combustion may yield small amounts of nitrogen oxides, along with the water vapor. The most important benefit of using hydrogen as a fuel is that when you burn it, the byproduct is just water.
Hydrogen is usually considered an energy carrier, like electricity, as it must be produced from a primary energy source such as solar energy, biomass, electricity, or hydrocarbons such as natural gas or coal. Conventional hydrogen production using natural gas induces significant environmental impacts as with the use of any hydrocarbon, carbon dioxide is emitted.

Note:
Hydrogen fuel can also provide motive power for liquid-propellant rockets, cars, trucks, trains, boats and airplanes, portable fuel cell applications or stationary fuel cell applications, which can power an electric motor. The problems of using hydrogen fuel in cars arise from the fact that hydrogen is difficult to store in either a high pressure tank or a cryogenic tank