Question

which of the following is not an example of a chemical property? choose 1 answer: a copper oxidizes to form a green coating. b acid rain is corrosive to stone. c iron is magnetic. d gasoline is flammable.

Explanation:

To determine which is not a chemical property, we analyze each option:

• Option A: Copper oxidizing (forming a new substance, copper oxide) is a chemical property as it involves a chemical reaction.
• Option B: Acid rain corroding stone involves chemical reactions (e.g., with carbonates in stone), so it's a chemical property.
• Option C: Iron being magnetic is a physical property. Magnetic properties can be observed without changing the chemical composition of iron.
• Option D: Gasoline being flammable means it can undergo combustion (a chemical reaction), so it's a chemical property.

Answer:

C. Iron is magnetic.