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Which of the following pair shows a positive deviation from Raoult's law?

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Important Questions on Solutions

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The vapour pressure of a solution of glucose is 720 mmHg at 100oC. What is the mole fraction of water in this solution?
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180 g of glucose, C6H12O6 is dissolved in 1 kg of water in a saucepan. At what temperature the solution will boil at 1.013 bar?
Kb for water is 0.52 K kg mol-1)
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Which of the following aqueous solution has highest boiling point? (Assume identical conditions)
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Which one of the following graphs correctly represents change in freezing point as a function of solute concentration?
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8.9 g of KCl dissolved in 1 Lof water exhibited an apparent degree of ionization of 0.86. The osmotic pressure exhibited by this solution is equal to the osmotic pressure of 1 L glucose solution of unknown concentration. Calculate the glucose solution concentration in wt.%, M. wt.of KCl=74.5
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Which of the following solution has the lowest osmotic pressure?
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A 100 mL of aqueous solution contains 10gm of urea. If the solvent is hypertonic with respect to a 100 mL glucose solution containing W gm of the compound. Which of the followings is correct?
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Consider the following equilibrium for benzoic acid in benzene

2C6H5COOHC6H5COOH2

If x represents the degree of association of the solute then relationship between total number of moles of particles at equilibrium and van't Hoff factor i is