Is odor a physical or chemical property?

Answer 1

A little of both. Lets say your friend is wearing something that smells good. Molecules of that fragrance travel through the air into your nose and to some extent into your upper mouth. There they impact on specialized receptor cells in a lock and key chemical faction. This causes that particular nerve ending to fire. The impulse travels to your brain and is interpreted, based on your prior learning, as a "good" smell. So you have a physical movement of a particle. A chemical reaction on the receptor and and electrical stimulus on the nerve.

Answer 2

Odour is a physical property. Odour is a sensation caused by odourant molecules dissolved in the air. The widest range of odors consist of organic compounds, although some inorganic substances, such as hydrogen sulfide and ammonia, are also odourants. The perception of an odor effect is a two step process. First, there is the physiological part; the sense of the stimulus by receptors in the nose. After that, the psychological part follows.

Answer 3

Chemical I think.

Answer 4

chemical