When non-volatile solute is added to a pure solvent, the: (a) vapour pressure of the solution be...

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When non-volatile solute is added to a pure solvent, the:
(a) vapour pressure of the solution becomes lower than the vapour pressure of the pure solvent
(b) rate of evaporation of solvent is reduced
(c) solute does not affect the rate of condensation
(d) none of these
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