it is possible to obtain oxygen from air by fractional distillation because

Options

A. oxygen is more reactive than nitrogen
B. oxygen has higher boiling point the nitrogen
C. oxygen has lower density than nitrogen
D. oxygen is in a different group of the periodic table form nitrogen

Answer

2

Explanation

The most economical method for commercial preparation of `O_(2)` involves liquefaction of air (after removing `CO_(2)` and water vapour) followed by fractional distillation of the liquids air so obtained.
During the process ,dinitrogen `(N_(2))` with lower baking point `(77 K)` distils over in the gaseous form leaving behind dioxygen with higher boiling point `(90 K)` in the liquid state.