Question

let's compare two compounds of similar molar mass in which A is comprised of nonpolar molecules and B composed of polar molecules. which of the following statements is true ?
A. B will boil at a lower temperature than will A.
B. B will not boil.
C. B will boil at a higher temperature than will A.
D. Both compounds have the same boiling point.

Answer 1

Answer: The correct option is (C).

Explanation:

Compound A is comprised of non-polar molecules

• In non polar molecules , molecules are weakly associated to each other due to presence of weak inter-molecular interactions by which they boils at lower temperature.

Compound B is comprised of polar molecules

• In polar molecules , molecules are strongly associated with each other due to presence of strong inter molecular interactions by which they boils at higher temperature.

Hence, B will boil at a higher temperature than will A.