Question

Is change of state of matter a chemical change or a physical change? Give Reasons.

Answer 1

physical change as there can be change of state on heating or cooling

Answer 2

Physical changes alter only the size, shape, form or matter state of a material. Water boiling, melting ice, tearing paper, freezing water and crushing a can are all examples of physical changes. On the other hand, chemical changes are a bit different. In a chemical change, a new substance is formed.