Which of the following is a physical property of matter?

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

Answer: (C)

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 how a substance interacts with other substances, resulting in a chemical change.
2. Analyze each option to determine if it involves a change in the substance's chemical identity or not.
3. Tendency to corrode involves a chemical change because corrosion alters the substance's chemical composition, so it is a chemical property.
4. Ability to react with acid and flammability both describe how a substance undergoes chemical reactions, so these are chemical properties.
5. Melting point is the temperature at which a substance changes from solid to liquid without changing its chemical identity, making it a physical property.