Chapter 8.2, Problem 8.3P

Interpretation Introduction

Interpretation:

The compounds which form hydrogen bonding should be determined from the given list.

Concept Introduction:

Intermolecular forces in a molecule are the important factor which is responsible for the physical changes of the molecule.

The intermolecular forces in gases are negligibly small and the forces are comparatively stronger for liquids and the intermolecular forces are highest in solids.

The stronger the intermolecular forces, closer will be the molecules in contact and thus higher will be the boiling point and melting point of the substance.

Three types of intermolecular forces:

• London dispersion
• Dipole-dipole
• Hydrogen bonding

Hydrogen bonding: It is an unusual strong intermolecular force occurs between a hydrogen atom and an electronegative atom like nitrogen, oxygen or fluorine.

It occurs in both water and ammonia