Which term describes a property that does not have a numerical value and is observed, such as colour and odour?

Which term describes a property that does not have a numerical value and is observed, such as colour and odour?

• A. Qualitative property
• B. Quantitative property
• C. Chemical property
• D. Physical change

Answer: (A)

Qualitative properties describe attributes observed without measurement, such as color and odor. These are described by descriptions rather than numbers, unlike quantitative properties which involve numerical values like mass or temperature. So color and odor fit the idea of qualitative properties. The other terms don’t fit: a quantitative property would involve numbers, a chemical property relates to how a substance reacts, and a physical change is a process, not a property being described.

Qualitative properties describe attributes observed without measurement, such as color and odor. These are described by descriptions rather than numbers, unlike quantitative properties which involve numerical values like mass or temperature. So color and odor fit the idea of qualitative properties. The other terms don’t fit: a quantitative property would involve numbers, a chemical property relates to how a substance reacts, and a physical change is a process, not a property being described.