Hydrogen: The Element and Its Applications

What is the primary reason hydrogen is not found in its pure form naturally?

• It is too heavy to exist freely.

• It is always combined with other elements.

• It is too rare to be found naturally.

• It is unstable in its pure form.

Which method is most commonly used to produce hydrogen today?

• Photosynthesis

• Steam reforming

• Nuclear fusion

• Electrolysis

What is the primary role of hydrogen in the global energy system?

• It is a primary energy source.

• It is an energy carrier.

• It is used to generate nuclear power.

• It is a renewable energy source.

In which industry is hydrogen used to remove contaminants such as sulfur?

• Metal refining

• Oil and gas

• Electronics manufacturing

• Food processing

What is a major challenge in using hydrogen as a fuel?

• Its production can lead to greenhouse gas emissions.

• It is too abundant, leading to overuse.

• It is too cheap to be economically viable.

• It is not efficient as an energy carrier.