Which substance contains individual molecules in the solid ?

Molecules in Solids

Which substance is having molecular solid:

Which substance is having molecular solid:

Which substance will conduct the current in the solid state?

In the gas phase PCl_(5) exists as individual molecules but in the solid it takes on the ionic structure PCl_(4)^(+)PCl_(6)^(-) . What are the geometries of these three species?

Which substance will conduct the current in the solid state

Which substance will conduct the current in the solid state