Chapter 17, Problem 4STP

Interpretation Introduction

Interpretation:

The way in which intermolecular forces arises due to temporary imbalance in electron density around the nucleus needs to be discussed.

Concept introduction:

The intermolecular forces are the types of attraction forces or repulsive between the molecules and other types of the nearby molecules.

Answer to Problem 4STP

Correct answer: B. London dispersion forces

Explanation of Solution

Reason for correct option:

London dispersion forces are weakest type of intermolecular forces which is temporary force due to presence of electrons in two adjacent atoms occupying positions making it forming a temporary dipoles. These forces are also called induced-induced dipole attraction.

Conclusion

Reasons for incorrect options:

A. In ionic bond there is a electrostatic intermolecular forces that form strong ionic bond with other ionic species.

C. These interaction are a type of intermolecular attraction-attraction forces between the molecules. It is also a very strong type of intermolecular forces.

D. Hydrogen is also a special type of dipole-dipole intermolecular forces which is a strong force.