Question

<!--td {border: 1px solid #ccc;}br {mso-data-placement:same-cell;}--> Explain how air is a mixture.

Answer 1

<!--td {border: 1px solid #ccc;}br {mso-data-placement:same-cell;}--> 1. Air can be separated into its components like nitrogen, oxygen, argon, and carbon dioxide by the process of fractional distillation of liquid air.
2. Air shows the properties of all the gases present in the atmosphere. For example, oxygen is a good supporter of combustion. Hence, air also is a good supporter of combustion.
3. Air does not have a fixed formula.
4. Air has a variable composition because air at different places contains different amounts of gases. For example, the air in a closed room with people will have a higher carbon dioxide content than the air outside.