Question

Burning a candle is:

1. A Chemical change
2. A Physical change
3. Both chemical and physical change
4. Neither chemical nor physical change

Answer 1

Correct Answer - Option 3 : Both chemical and physical change

The correct answer is Both chemical and physical change.

CONCEPT:

Chemical change	A change in which one or more new substance is formed is a chemical change. It is a permanent change.
Physical change	A change in which the physical properties of a substance change is called a physical change. It is a temporary change and no new substances are formed. It is generally reversible

EXPLANATION:

• Burning a candle is both physical and chemical change.
• As the candle starts burning, the wax starts melting. This is a physical change.
• The melted wax vaporizes in the flame and the wax vapours burns and gets converted into carbon dioxide, soot etc. This is a chemical change.