Question

Among the following mixtures, dipole-dipole as the major interaction, is present in

Options

• benzene and ethanol

• acetonitrile and acetone

• KCl and water

• benzene and carbon tetrachloride

Answer 1

Acetonitrile and acetone

Explanation:

Dipole–dipole interactions occur between polar molecules with permanent dipoles. Acetonitrile (CH₃CN) and acetone (CH₃COCH₃) are both polar, so the dominant intermolecular force between them is dipole–dipole interaction.