Question

According to the Raoult's law, the relative lowering of vapour pressure is equal to the
a) mole fraction of solvent
b) mole fraction of solute
c) independent of mole fraction of solute
d) molality of solution

Answer 1

C). Independent of mole fraction of solute.

Answer 2

According to the Raoult's law, the relative lowering of vapour pressure is equal to the independent of mole fraction of solute.

Mole fraction may be consider as ratio of total number of the moles of one component to the total number of mole in the part of the components.

Hope it is right answer for the student to get an ideas of it.