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For a fixed mass of solute, how do colligative effects vary with molar mass?
AThey fall as it rises
BThey rise as its square
CThey do not depend on it
DThey rise as it rises
Answer & Solution
Correct answer: A. They fall as it rises
A heavier solute gives fewer moles for the same mass, so every colligative property is inversely proportional to molar mass.
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