The Importance and Applications of Hydrogen

Hydrogen, the first element in the periodic table, is the most abundant element in the universe. It is a colorless, odorless, tasteless, non-toxic, and highly combustible diatomic gas. Hydrogen is crucial in various industries, such as petroleum refining and ammonia production. Historically, it was used in airships until the Hindenburg disaster. In organic chemistry, hydrogen bonds with carbon to form stable compounds. Hydrogen is also seen as a potential clean fuel for the future, with fuel cells offering pollution-free energy solutions.

What is the atomic number of hydrogen, and why is it significant in the universe?

• Atomic number 4; it's the fourth most abundant element.

• Atomic number 1; it's the most abundant element.

• Atomic number 2; it's the second most abundant element.

• Atomic number 3; it's the third most abundant element.

In which industry is hydrogen gas crucial for removing sulfur from fuels?

• Petroleum and gas industry

• Textile industry

• Automobile industry

• Pharmaceutical industry

What was a major reason for the shift from hydrogen to helium in airships?

• Helium provides more lift than hydrogen.

• Helium is less reactive with oxygen.

• Helium is more abundant than hydrogen.

• Helium is cheaper than hydrogen.

How does hydrogen contribute to the stability of organic compounds?

• By absorbing electrons from carbon

• By donating protons to carbon

• By sharing electrons with carbon

• By forming ionic bonds with carbon

Why is hydrogen considered a potential clean fuel for the future?

• It is cheaper than fossil fuels.

• It produces water when oxidized.

• It is abundant and easy to extract.

• It is more efficient than solar energy.