Q.

Bursting of the balloon which was filled with normal air by applying the tip of the pin over its surface is-

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a

Periodic change

b

Chemical change

c

Physical change 

d

Biological change

answer is C.

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Detailed Solution

A change in which the chemical composition of substances doesn't change and no new substance is formed is called Physical change. In the case of the bursting of the balloon by applying a pin tip externally, the chemical composition of the air is the same hence, it is a physical change.

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