Question

Burning of a candle is ___ .

• A. a physical change
• B. a chemical change
• C. a physical and a chemical change
• D. biological change

Answer 1

The correct option is C

a physical and a chemical change

Burning of a candle is both physical and chemical change. When we burn a candle, the wax melts and hence the physical state of wax changes from solid to liquid. As the wax burns to produce flame, it combines with the atmospheric oxygen and changes to carbon dioxide and produces heat and light. Thus, both types of changes occur when we burn a candle.