Which of the following is a chemical property?

• A. Flammability
• B. Color
• C. Malleability
• D. Solubility

Answer: (A)

This question tests the difference between a chemical property and a physical property. A chemical property describes how a substance behaves in a chemical reaction and often involves forming new substances. Flammability fits this idea because it describes whether something will burn and react with oxygen, producing new substances like carbon dioxide and water during combustion.

In contrast, color, malleability, and solubility are observable without changing the substance’s identity under normal conditions. Color is how something looks, malleability is how it can be shaped without breaking its chemical makeup, and solubility describes how it dissolves in a solvent—none of these require a chemical transformation.

So, flaming or burning is the best example of a chemical property, which is why flammability is the correct choice.