Which option is an example of a chemical property? boiling point rusting ability melting point density

Rusting ability

Explanation:

Physical property is defined as the property which can be measured and whose value describes the state of physical system. For Example: State, density etc.

Chemical property is defined as the property of a substance which is observed during a reaction where the chemical composition identity of the substance gets changed.

1. Boiling point:  is a physical property as there is a change of state.

2. Rusting ability: is a chemical property as there is formation of new substances.

3. Melting point: is a physical property as there is a change of state.

4. Density: is a physical property as there is no  formation of new substances.

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