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प्रश्न
Association of solute particles always leads to a ______ value of observed molecular mass of the solute.
रिक्त स्थान भरें
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उत्तर
Association of solute particles always leads to a higher value of observed molecular mass of the solute.
Explanation:
Association means that individual solute molecules combine to form larger units (like dimers or trimers). This reduces the number of particles in the solution. Since colligative properties (like osmotic pressure, boiling point elevation, etc.) depend on the number of solute particles, a decrease in particle number causes lower colligative effects. As a result, when calculated from these properties, the observed molecular mass appears higher than the actual (expected) molecular mass.
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