Question

Burning of wood and rusting of iron bar are examples of chemical changes.

• A. True
• B. False

Answer 1

The correct option is A True

When we burn wood a new substance called ash is formed. Also, during rusting of iron a reddish brown flaky layer of iron oxide is formed on the iron surface. So, there is a colour change along with the formation of a new substance. Such types of changes where there is formation of a new substance are called chemical changes.