Chapter 15, Problem 25R

To determine

To choose: The correct option.

Answer to Problem 25R

Option (C)

Explanation of Solution

Introduction:

The property that leads to change in chemical nature of a substance is known as chemical properties.

The characteristic of a substance that causes any chemical reaction or chemical change in its composition is known as chemical properties. Examples are pH value, toxicity and flammability.

A substance is said to be fragile when it is broken easily due to applying some force. In this process, no chemical change occurs.

Sharpness is the physical properties of a material.

A substance is said to be flammable when it catches fire easily at an ambient temperature. In this process, chemical reaction occurs between oxygen and air. Hence, the flammable warning is the chemical properties of a material. Therefore, the correct option is (C).

Conclusion:

Thus, the correct option is (C).