Question

explain how are can obtained different gase form air

Answer 1

By volume, dry air contains 78.09%nitrogen, 20.95% oxygen, 0.93% argon, 0.04% carbon dioxide, and small amounts of other gases.
Air also contains a variable amount of water vapor, on average around 1% at sea level, and 0.4% over the entire atmosphere.

Answer 2

you have to make same diagram to complete your answer