Question

which option is an example of a physical property?
rusting ability
melting point
flammability
toxicity

Explanation:

A physical property can be observed or measured without changing the substance's chemical identity. Melting point is such a property. Rusting ability is a chemical property as it involves a chemical change (oxidation). Flammability is also a chemical property as it involves a substance burning (a chemical reaction). Toxicity is a chemical property related to a substance's ability to cause harm through chemical interactions.

Answer:

Melting point