Answer:
The correct answer would be the smell.
Physical properties refer to the properties which measured or observed without altering the composition of matter.
They include properties like:
- Texture
- Appearance
- Odor
- Color
- Boiling point
- Melting point
- Density
- Solubility
- Polarity et cetera.
In contrast, chemical properties refer to the properties which are observed during a chemical reaction of the substance. For example, reaction with oxygen, reaction with acid or base, pH et cetera.