alleryThe four colligative properties all originate from:
AThe lowering of solvent vapour pressure caused by solute particles
BThe mass of the solute
CThe chemical reactivity of the solute
DThe volume of the solute
Answer & Solution
Correct answer: A. The lowering of solvent vapour pressure caused by solute particles
All four colligative effects trace back to the **lowering of solvent VP** when a non-volatile solute occupies part of the surface and reduces escape.
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