Question

Is air a pure substance?

Answer 1

Pure substances:

1. A pure substance is one that has no other substances or impurities and cannot be divided into different types of matter through physical processes.
2. They have specific qualities such as melting and boiling points.
3. They also have a fixed formula and structure.
4. A number of gases and dust particles make up air. The majority of the space is taken up by nitrogen, oxygen, and argon, with carbon dioxide, neon, helium, sulfur dioxide, and other gases filling the rest. Water vapor is also present.
5. Fractional distillation of liquid air can separate air into its constituents such as nitrogen, oxygen, argon, and carbon dioxide.
6. Air represents the properties of all the gases that exist in the atmosphere.
7. Because air is made up of many different gases, it does not have a fixed formula. Therefore, the air is a mixture of various kinds of gases.

Therefore, Air is not a pure substance.