Properties of Solids Practice Test

A student heats two solids to compare melting behavior. Solid P is a molecular solid made of polar molecules capable of hydrogen bonding. Solid Q is an ionic solid. Which statement best describes their melting behavior?

A student tests an unknown solid. It is dull, soft, and has a low melting point. It does not conduct electricity as a solid, and the liquid also does not conduct. Which classification is most consistent with these observations?