Multiple choice

Which chemical element or compound is commonly present in propellants and explosives?

  1. CO2

  2. O2

  3. H2

  4. N2

  5. H2O

Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Nitrogen is a chemical element with symbol N and atomic number 7. Elemental nitrogen is a colorless, odorless, tasteless, and mostly inert diatomic gas at standard conditions, constituting 78.09% by volume of Earth's atmosphere.