how can be oxygen collected
Answers
Answer:
Oxygen is collected by the downward displacement of water because it is only slightly soluble in water and is less dense than water.
It cannot be collected by downward displacement of air since oxygen will get mixed with other gases in air
Explanation:
Answer:
Can we extract oxygen from air?
Technically speaking, it's possible to extract oxygen from air through fractional distillation. There are several processes including fractional distillation, cryogenic distillation processes and others where it's possible to extract oxygen from the air through fractional distillation.
To make oxygen in the laboratory, hydrogen peroxide is poured into a conical flask containing some manganese(IV) oxide. The gas produced is collected in an upside-down gas jar filled with water. As the oxygen collects in the top of the gas jar, it pushes the water out.