Multiple choice

To separate different gases from air, which method is used?

  1. Centrifugation method

  2. Evaporation

  3. Sublimation

  4. Fractional distillation

  5. Chromatography

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

Yes, it is the correct answer. Separation of oxygen, liquid nitrogen and argon from air is done by fractional distillation.