Question

(4) Name the process by which air is separated and boiling
point of oxygen is​

Answer 1

Rractional distillation

• Atmosphere (air), which is mainly composed of nitrogen, oxygen and carbon dioxide, is cooled until it reaches -200 degrees Celsius and liquefies. The liquid air undergoes a process called fractional distillation. Fractional distillation uses the different boiling points of the main elements of air.