What type of change is the blowing of a balloon?

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Reversible Change

Physical Change

Both 1&2

Only 1 or 2

answer is C.

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Detailed Solution

The change observed in the blowing of a ballon is a reversible and physical change.
Blowing a balloon is a physical change because only the size of the balloon changes and no change in the chemical properties of the balloon occurs (no new substance is formed). We can get it back to its original form. It is a reversible change because after blowing the air into the balloon and it expands, it returns to its original state on releasing the air. This process can be repeated many times.

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