Answer: Option (A) is the correct answer.
Explanation:
A property that changes chemical nature of a substance is known as chemical property.
For example, reactivity, toxicity, combustion etc are all chemical properties.
Whereas a property which does not change the chemical property of a substance is known as a physical property.
For example, mass, density, volume etc are all physical properties.
Therefore, we can conclude that properties that can change the chemical nature of matter are called chemical properties.
