Question

Select the intermolecular force(s) present in a liquid sample of each compound.hydrogen bonding dipole-dipole interactions dispersion forceshydrogen bonding dipole-dipole interactions dispersion forceshydrogen bonding dipole-dipole interactions dispersion forces

Answer 1

Concepts and reason

Intramolecular forces exist within the molecule. It influence the chemical properties of the substance.

Intermolecular forces exist between the molecules. It influence the physical properties of the substance.

Fundamentals

Van der Waals forces (London-dispersion) are weak and exhibited by all the molecules.

Dipole-dipole interactions are moderate and exhibited by the molecules with a net dipole.

Hydrogen bonding is strong and exhibited by the molecules with an O-H, N-H or H-F bond.

Ion-ion interactions are very strong and exhibited by the ionic compounds.

The interactions between the ion and the dipole of the protic solvent are known as ion-dipole interaction

Part (a)

The structure is as follows:

Part (b)

The structure is as follows:

Part (c)

The structure is as follows:

Ans: Part (a)

Thus, the intermolecular forces present in this compound are dispersion forces.

Part (b)

Thus, the intermolecular forces present in this compound are dispersion forces and dipole-dipole interactions.

Part (c)

Thus, the intermolecular forces present in this compound are dispersion forces, dipole-dipole interactions and hydrogen bonding.