Question

Classify the following into physical and chemical change.

Magnetization of an iron piece

Answer 1

Physical change: A change in which only the physical properties of any substance get changed is called a physical change.

• During a physical change, no new substance is formed.

Chemical change: A change in which the composition and chemical properties of the substance get changed is called a chemical change.

• During a chemical change, one or more new substances are formed.

Magnetization of iron is a physical change because its chemical properties remain the same, no new substances are formed and this is a reversible change.