ICSE Class 9 Answered
Why air and tap water considered as mixtures?
Asked by Shreya | 23 Sep, 2016, 03:56: PM
Expert Answer
Air is a mixture of various gases such as oxygen, carbon dioxide, nitrogen etc.
These are not chemically bonded with each other.
Similarly, unlike 100% pure distilled water, tap water contains dissolved chlorine gas, minerals, sometimes contaminants in dissolved form.
These are also not chemically bonded with each other.
In short air and tap water are solutions where air and tap water act as solvent while constituents act as solutes.
In solution, solutes are not chemically bonded with solvent and can be separated by physical separation techniques.
Constituents of air and tap water can also be separated by physical separation techniques.
Hence, both air and tap water are mixtures.
Answered by Prachi Sawant | 24 Sep, 2016, 12:26: AM