Chapter 8, Problem 66A

Interpretation Introduction

Interpretation: A hydrogen bond needs to be defined.

Concept Introduction: The type of bonding in a molecule depends on the atoms which are involved in bonding. The relative strength of bonds depends on the interaction between two atoms. The different types of bonds formed between atoms are polar covalent, non-polar covalent, ionic, coordinate, and hydrogen bonds.

Explanation of Solution

A hydrogen bond is formed between a molecule having a hydrogen atom covalently bonded with an electronegative atom (hydrogen bond donor) and another electronegative atom having lone pair of electrons (hydrogen bond acceptor).

For example, water molecules. In a water molecule, a hydrogen atom is covalently bonded with an electronegative oxygen atom. To form a hydrogen atom, the other molecule must have an electronegative atom with lone pair of electrons. The hydrogen bonding between two water molecules is possible.