Lowering of vapour pressure of solution
a) is a property of solute
b) is a property of solute as well as solvent
c) is a property of solvent
d) is a colligative property
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is a property of solute
as some of the solute particles occupy the upper surface and reduce the fraction of surface covered by solvent molecules, hence lowering the vapour pressure
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The vapor pressure of the given solvent is at the stage of the lowered when non volatile solute is dissolved in it form of the solution. .
Vapor pressure lowering the part of the relative to pure solvent become the proportional to the mole fraction of solute with no trouble of it.
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