Among the following mixiture dipole-dipole as the mojor interaction is present is

Options

A. KCl and water
B. benzene and carbon tetrachloride
C. benzene and ethanol
D. acetonitrile and acetone

Answer

D

Explanation

Acetonitrile `{:(" "delta+" " delta-),("("CH_3-C -=N")"):}`
and acetone `CH_3-overset(O)overset(||)C -CH_3` both are polar molecules. Hence, dipole- dipole in I nteraction exist between them. Between KCl and water ion- dipole interaction is found and in benzene - ethanol and benzene carbon tetra chloride dispersion force is present