Question

4. Dissolving salt in a water is a:

• A. Physical change
• B. Chemical change
• C. Irreversible
• D. All of these

Answer 1

The correct option is B

Chemical change

Explanation for correct option:

Option (B): Dissolving salt in water is a type of chemical change because when salt is dissolved in water, the salt dissociates into sodium ions and chloride ions. So, new substances are formed when salt is dissolved in water so chemical change will take place.

Explanation for incorrect options:

Option (A): Physical change involves the change in physical properties of a substance and no new substance is formed.

Option (C): Irreversible change is the change in which the original substance cannot be obtained back.

Hence, option (B) is the correct answer. Dissolving salt in water is a chemical change.