Consider the following signs of chemical change:
(1) Formation of a new substance.
(2) Change of colour.
(3) Evolution of gas or heat or light.
(4) A reversible change in shape.
Choose Your Option
A. 1 and 2
B. 1, 2 and 3
C. 1, 2, 3 and 4
D. Only 4
Solution & Explanation
No details explanation available for this question. Option B is the verified correct answer.