Question

Why water is considered a compound but air is considerd as mixture.explain?

Answer 1

Air is a mixture because it consists of several gases that are able to be separated by physical means (different temperatures of liquifaction permitting fractional distillation). That is the definition of a mixture - the ability to be separated by physical means.

Answer 2

Yes, water is a compound. ... The chemical formula for water is H2O, which means each molecule of water consists of one oxygen atom chemically bonded to two hydrogen atoms. Thus, water is acompound. It's also a molecule, which is any chemical species formed by two or more atoms chemically bonded to each other.
air is not a mixture because of scientists freezing it and finding different liquids, it is a mixturebecause the compounds that make up air e.g. oxygen (o2), Carbon dioxide (co2) and the most important Nitrogen which is an element and makes up 78.09% ofair are not chemically bound in the way that compounds are ...