question_answer

Differentiate between physical and chemical changes- Give two examples.

Answer:

S. No.	Physical change	Chemical change
(a)	Only physical properties like color, volume etc change.	The chemical composition and chemical properties of the reacting substances undergo a change.
(b)	No new substance is formed. Examples: (i) Conversion of water into ice, (iii) Tearing of paper.	One or more new substances are formed. Examples: (i) Burning of cooking gas, (ii) Ripening of fruits.