Chapter 15, Problem 4STP

To determine

To Choose: The correct option.

Answer to Problem 4STP

Option A

Explanation of Solution

Introduction:

An element is defined as substance that contains atoms with identical numbers of proton.

Flammability is defined as the property of a substance to burn and it is a chemical property. Paint thinner is an example of flammable substance. Therefore, the option (A) is correct.

Ductility is defined as the physical property of a material to deform. Therefore, the option (B) is incorrect.

Density is defined as the measure of mass per volume. Therefore, the option (C) is incorrect.

Boiling point is defined as the temperature at which a liquid changes its state from liquid to gaseous. Therefore, the option (D) is incorrect.

Conclusion:

Thus, the correct option is A.