Question

Give differences between the following with suitable examples:
(a) Physical and chemical change
(b) Reversible and irreversible change
(c) Periodic and non-periodic change​

Answer 1

Answer:

process in which no new chemical substance is formed, is known as physical change. eg., melting of ice.

Whereas, process in which the original substance lose their nature and identity and form new substance is known as chemical change. eg., cooking of food.