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JEE CHEMISTRY MCQ: SOLUTIONS
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Hard
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Analyzing
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A non-volatile solute '' completely dimerizes in water, if the temperature is below and the solute completely dissociates as if the temperature is above In between these two temperatures (including both temperatures), the solute is neither dissociated nor associated. One mole of '' is dissolved in water . Identify the incorrect information related with the solution.
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Correct option: C
When the solution is cooled to of water present initially will separate as ice
Option D is incorrect because the percentage of water separated as ice when cooled to is calculated to be , not .
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An aqueous solution of a solute which neither associates nor dissociates has a freezing point depression of An equimolal solution of a second salt has a freezing point depression of Assuming dissociation of salt, the second solution could be a salt of formula
Read the following statements carefully and choose the correct option
(i) Osmotic pressure is not a colligative property.
(ii) For dilute solutions, osmotic pressure is proportional to the molarity, of the solution at a given temperature .
(iii) During osmosis, solvent molecules always flow from higher concentration to lower concentration of solution.
(iv) The osmotic pressure has been found to depend on the concentration of the solution A solution that obeys Raoult’s law is called When two liquids and are mixed they form an ideal solution. At certain temperature the V.P. of the solution, that contains 3 moles of and 1 mole of was found to be of . The vapour pressure of a solution containing 4 moles of and 1 mole of was found to be 560 of . The vapour pressure of pure liquid is Equal masses of two aqueous solutions, one of glucose per of water and the other of urea per of water are mixed. If the freezing point of resulting solution is then the value of '' is of water Information
I. Semipermeable membrane contains network of submacroscopic holes or pores.
II. Semipermeable membrane appears to be continuous sheets or films.
III. Solvent molecules cannot pass through the holes of semipermeable membrane but solute molecules can pass On the basis of the information given above select the correct option.
(i) Osmotic pressure is not a colligative property.
(ii) For dilute solutions, osmotic pressure is proportional to the molarity, of the solution at a given temperature .
(iii) During osmosis, solvent molecules always flow from higher concentration to lower concentration of solution.
(iv) The osmotic pressure has been found to depend on the concentration of the solution A solution that obeys Raoult’s law is called When two liquids and are mixed they form an ideal solution. At certain temperature the V.P. of the solution, that contains 3 moles of and 1 mole of was found to be of . The vapour pressure of a solution containing 4 moles of and 1 mole of was found to be 560 of . The vapour pressure of pure liquid is Equal masses of two aqueous solutions, one of glucose per of water and the other of urea per of water are mixed. If the freezing point of resulting solution is then the value of '' is of water Information
I. Semipermeable membrane contains network of submacroscopic holes or pores.
II. Semipermeable membrane appears to be continuous sheets or films.
III. Solvent molecules cannot pass through the holes of semipermeable membrane but solute molecules can pass On the basis of the information given above select the correct option.