Which of the following is considered a physical property of matter?

• A. Flammability
• B. Melting point
• C. Ability to react with acid
• D. Tendency to corrode

Answer: (B)

Verified step by step guidance

1. Understand the difference between physical and chemical properties: Physical properties can be observed or measured without changing the substance's identity, while chemical properties describe a substance's ability to undergo chemical changes.
2. Analyze each option to determine if it involves a change in the substance's chemical identity or not.
3. Flammability involves combustion, which changes the substance chemically, so it is a chemical property.
4. Melting point is the temperature at which a substance changes from solid to liquid without changing its chemical identity, so it is a physical property.
5. Ability to react with acid and tendency to corrode both involve chemical reactions that change the substance, so they are chemical properties.