Question

Which of the following are examples of reversible change?

• A. Moulding clay to form a toy
• B. Ripening of fruits
• C. Cutting a piece of paper
• D. Putting pencil mark on a paper

Answer 1

Answer: (A), (D)

The correct options are
A Moulding clay to form a toy
D Putting pencil mark on a paper

A process in which the original form of substance can be retained by any physical process is known as reversible change.

• Moulding clay to form a toy is a reversible change as the toy can be remoulded to get clay in original shape.
• Putting pencil mark on a paper is a reversible change as it can be erased.
• Cutting a piece of paper is an irreversible change because we cannot get the paper back in original shape and size after it is cut.
• Ripening of fruits is an irreversible change as once fruit has ripened, it cannot go back to its raw form.