Question

In Spite of the danger involved with hydrogen, it is used as fuel for some applications. What are there?
A.Rocket fuel
B.Oxyhydrogen flame
C.Car fuel
D.All of the above

Answer 1

Hydrogen is a clean fuel that produces just water when burned in a fuel cell. Hydrogen can be made from a range of domestic sources, including natural gas, nuclear power, biomass, and renewable energy sources such as solar and wind power. These characteristics make it a desirable fuel for transportation and electricity generation. It can be utilised in automobiles, homes, portable power, and a variety of other applications.

Complete answer:
Rocket fuel: Petroleum, cryogens, and hyperboles are the three forms of liquid propellants utilised in rocketry. Petroleum fuels are a mixture of complex hydrocarbons, or organic substances containing just carbon and hydrogen, processed from crude oil.
Oxyhydrogen flame: A mixture of hydrogen $\left( {{H_2}} \right)$and oxygen $\left( {{O_2}} \right)$gases is known as oxyhydrogen. This gaseous combination was the first gaseous mixture used for welding and is utilised in torches to process refractory materials. In theory, a $2:1$ hydrogen:oxygen ratio is sufficient for maximum efficiency; in fact, a $4:1{\text{ }}or{\text{ }}5:1$ ratio is required to avoid an oxidising flame.
It is utilised as rocket fuel due to its high calorific value. As an oxyhydrogen flame, it is also used for cutting and welding. Some of the most recent car manufacturers have begun testing hydrogen as a vehicle fuel under strict safety circumstances. In autos, about $5\%$ hydrogen is mixed with ordinary gasoline.
So, option D is correct.

Note:
Hydrogen is a form of energy that may be utilised to store, transport, and deliver energy generated by other sources. Hydrogen fuel can be made in a variety of ways. Natural gas reformation (a thermal process) and electrolysis are the most popular procedures nowadays. Solar-powered and biological processes are two other options.