Which one of the following statements is not applicable to molecular solids?
a. The units that occupy the lattice points are molecules.
b. The binding forces in molecular solids are dispersion forces or dispersion forces and dipole-dipole interactions.
c. Molecular solids have relatively low melting points.
d. Molecular solids are usually excellent conductors of electric current.
e. Molecular solids are soft compared to covalent solids.
Answer: D