Question

Camphor is often used in molecular mass determination because
A. it is reading available
B. it has a very high cryoscopic constant
C. it is volatile
D. it is a solvent for organic substances

Answer 1

Correct Answer - 2
We have
`DeltaT_(f)=iK_(f)m`
For a given concentration of a solution, the magnitude of `DeltaT_(f)` is directly related to the value of `K_(f)`. Among the available solvents, camphor has the highest value of `K_(f)(40 K kg mol^(-1))` and thus gives the maximum depression of freezing point for a given amount of solute.