Chapter 15, Problem 26R

To determine

To choose: The correct option.

Answer to Problem 26R

Option (A)

Explanation of Solution

Introduction:

Any change due to which the chemical composition of a substance remains same is known as physical change.

The characteristic of a substance that do not cause any chemical reaction or chemical change in its composition is known as physical properties. The characteristics, solubility, taste, odor and appearance are the example of physical change.

The process rusting and formation of precipitate leads the chemical change in the material.

The formation of bubbles is caused due to reaction of soap and water. Hence, this process involves chemical change.

When a glass is broken, the appearance of the material changes only but the chemical composition remains same. Hence, broken glass is the evidence of physical change. Therefore, the correct option is (A).

Conclusion:

Thus, the correct option is (A).