A substance is found to be reactive, flammable, soluble, and explosive. Which of these observations is a physical property?

A.
flammable
B.
reactive
C.
explosive
D.
soluble

1 answer

The observation that is a physical property among the options given is D. soluble.

Solubility refers to the ability of a substance to dissolve in a solvent, which is a physical characteristic. In contrast, flammability, reactivity, and explosiveness are all chemical properties, as they involve the substance's ability to undergo chemical changes.