For a dilute solution, Raoult's law states that:

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the lowering of vapour pressure is equal to the mole fraction of solute

the relative lowering of vapour pressure is equal to the mole fraction of solute

the relative lowering of vapour pressure is proportional to the amount of solute in solution

the vapour pressure of the solution is equal to the mole fraction of solvent

answer is B.

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Detailed Solution

PSolution =PSolution XSolvent P∘−PP∘=XSolute Highest vapour pressure for lowest boiling point.

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