Which change can be easily be reversed?

Chemical Change

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Physical Change

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Both physical and chemical change

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Neither physical or chemical change

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Solution

The correct option is A Physical Change
A physical change is a change in which no new substance is formed. In a chemical change, there is a chemical reaction, a new substance is formed and energy is either given off or absorbed.

Physical changes can be reversed, chemical changes cannot be reversed.

For example, a cup of water can be frozen when cooled and then can be returned to a liquid form when heated.

Option B is correct.

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Say True or False.

Question 7

Neutralisation reaction is a
(a) physical and reversible change.
(b) physical change that cannot be reversed.
(c) chemical and reversible change.
(d) chemical change that cannot be reversed.

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