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प्रश्न
Which of the following statements is false?
पर्याय
Two different solutions of sucrose of same molality prepared in different solvents will have the same depression in freezing point.
The osmotic pressure of a solution is given by the equation Π = CRT ( where C is the molarity of the solution).
Decreasing order of osmotic pressure for 0.01 M aqueous solutions of barium chloride, potassium chloride, acetic acid and sucrose is BaCl2 > KCl > CH3COOH > sucrose.
According to Raoult’s law, the vapour pressure exerted by a volatile component of a solution is directly proportional to its mole fraction in the solution.
उत्तर
Two different solutions of sucrose of same molality prepared in different solvents will have the same depression in freezing point.
Explanation:
ΔTt = Kfm
Since Kf values depend upon the nature of solvent, the depression in freezing point of the solution would not be the same.
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संबंधित प्रश्न
1.0 x10-3Kg of urea when dissolved in 0.0985 Kg of a solvent, decreases freezing point of the solvent by 0.211 k. 1.6x10 Kg of another non-electrolyte solute when dissolved in 0.086 Kg of the same solvent depresses the freezing point by 0.34 K. Calculate the molar mass of the another solute. (Given molar mass of urea = 60)
Give reasons for the following:
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