- (D) Glucose, C 6 H 12 O 6 , is a polar molecule (as are all sugars) and dissolves
in water because water is also a polar molecule. A good rule of thumb is that
“like dissolves like.” Glucose is also a nonvolatile solid. So glucose lowers
the vapor pressure of the solution which, in turn, lowers the freezing point of
the solution. The freezing point is a colligative property.