H₂ is a Molecular Formula of which of the following elements?
Show answer & explanation
Correct answer: B
Explanation
The correct answer is option 2 i.e. Hydrogen.
- H₂ is the molecular formula for hydrogen, the lightest and most abundant element in the universe. H₂ indicates that two hydrogen atoms are bonded together to form a diatomic molecule.
- Hydrogen exists as diatomic molecules (H₂) under standard temperature and pressure (STP) because two hydrogen atoms share electrons to achieve a stable electronic configuration.
- Hydrogen (H₂) is used as a clean fuel in hydrogen fuel cells, in the Haber process to produce ammonia, for hydrogenation of oils in the food industry, and as fuel for rocket propulsion due to its high energy efficiency.