Question

Which of the following does not happen in a physical change?
(1) Change in shape
(2) Change in colour
(3) Formation of new substance
(4) Change in density

Answer 1

Physical changes are the changes that change the physical traits of the substance, without making any change in their internal structure.

Physical change results in change in shape, change in colour, and change in density but formation of new substance is not possible. Hence, the right answer is formation of new substance.

Answer 2

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HERE'S THE ANSWER ✌
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Physical Changes:-

Changes of state such as melting or boiling are physical changes and are generally easy to reverse though the end product may not always look exactly the same as the starting material.
In physical changes no new materials are formed and the particles do not change apart from gaining or losing energy.

So,the correct option is 3
(formation of new substance)

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