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Jenny takes a piece of paper and dips it in a bowl of water. The paper is now damp and mushy. Which of the following is/are true about the change that occurs when the paper gets wet?

I. It is a physical change.
II. It makes a new substance.
III. It is a chemical change.

A.
I only
B.
I and II only
C.
II and III only
D.
II only

1 answer

The correct answer is A. I only.

Explanation:

  • I. It is a physical change. True: When the paper gets wet, it undergoes a physical change. The paper's state is altered because it becomes damp, but no new substances are formed.
  • II. It makes a new substance. False: No new substance is formed when the paper gets wet. The paper remains paper, just in a different state (damp).
  • III. It is a chemical change. False: A chemical change involves the formation of new substances, which does not occur when paper gets wet.

Therefore, only statement I is true.