Which of the following are characteristics of physical change?

No new substance is formed.

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We cannot reverse this change.

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A change in chemical composition occurs.

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Evolution of a gas

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Solution

The correct option is A No new substance is formed.
In a physical change, no new substance is formed and the chemical composition of substance remains the same. There are changes in physical properties like shape, size, appearance, etc.

For example: Cutting of paper. In this change, no new substance is formed as the paper is cut into smaller pieces. The composition remains the same. The pieces formed cannot be reverted to the original state.

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