Question

Select the correct answer from the choices A, B, C, and D which are given. Write only the letter corresponding to the correct answer.

Which change can be easily be reversed?

• A. Chemical change
• B. Both a physical and chemical change
• C. Physical change
• D. Neither a physical nor chemical change.

Answer 1

The correct option is C

Physical change

Explanation for correct option:

Option C

Physical change:

• A physical change is a change in which no new substance is formed.
• A physical change is temporary and reversible.
• In physical change, the chemical composition of the original substance is not altered.
• For example, drying of wet clothes, breaking of a glass tumbler, drying paints, etc.

Therefore, option C is correct.

Explanation for incorrect options:

Chemical change:

• A chemical change is a permanent change in which new substances are formed.
• The chemical change is permanent and cannot be reversed by a simple physical method.
• A chemical change involves an exchange of energy in the form of heat or light.
• For example, rusting of iron, burning of wood, respiration, etc.

Therefore, options A, B, and D are correct.