The correct answer is physical change is reversible and chemical change is irreversible Explanation & Key Takeaways: • Chemical changes • If the chemical composition of a product is changing then it is a chemical change. • The changes are irreversible changes. • And the final product is different from the initial one. • Example of Chemical changes is the burning of a candle, the ripening of fruit, the curdling of milk, and the digestion of food etc. • Physical changes • If the chemical composition remains the same but only the state changes, then it is a physical change. • The changes are reversible. • The states change, but the final products are the same as the initial one. • Example of Physical changes is the Freezing of water and the Evaporation of water etc.