Chapter 12, Problem 12.43P

(a)

Interpretation Introduction

Interpretation:

The member among the given pair of compounds that forms intermolecular $\text{H}$ bonds is to be identified. Also, the hydrogen-bonded structure is to be drawn.

Concept introduction:

Intermolecular forces operate between the molecules so changes with change in the phase and effects with physical properties of the substance. In intermolecular forces, the bond is formed between two molecules with partial charges that are present relatively far away from each other. Hydrogen bonding is also a type of intermolecular forces.

Hydrogen bonding is the attractive forces that exist between the molecule with a hydrogen atom bonded to an electronegative atom like fluorine, nitrogen, and oxygen of one molecule and an electronegative atom of another molecule. The hydrogen bonding in ${\text{H}}_2\text{O}$ is represented as follows:

(b)

Interpretation Introduction

Interpretation:

The member among the following pair of compounds that forms intermolecular $\text{H}$ bonds is to be identified. Also, the hydrogen-bonded structure is to be drawn.

$\text{HF}$ or $\text{HBr}$

Concept introduction:

Intermolecular forces operate between the molecules so changes with change in the phase and effects with physical properties of the substance. In intermolecular forces, the bond is formed between two molecules with partial charges that are present relatively far away from each other. Hydrogen bonding is also a type of intermolecular forces.

Hydrogen bonding is the attractive forces that exist between the molecule with a hydrogen atom bonded to an electronegative atom like fluorine, nitrogen, and oxygen of one molecule and an electronegative atom of another molecule. The hydrogen bonding in ${\text{H}}_2\text{O}$ is represented as follows: