Which of the following is NOT considered a physical property of matter?

• A. Density
• B. Boiling point
• C. Color
• D. Ability to react with acid

Answer: (D)

Verified step by step guidance

1. Step 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. Step 2: Review the given options: Density, Boiling point, Color, and Ability to react with acid.
3. Step 3: Recognize that Density, Boiling point, and Color are physical properties because they describe measurable or observable characteristics without altering the substance's chemical identity.
4. Step 4: Identify that the Ability to react with acid involves a chemical change, as it describes how a substance interacts chemically with another substance (acid), thus it is a chemical property.
5. Step 5: Conclude that the property NOT considered a physical property of matter is the Ability to react with acid.