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JEE CHEMISTRY MCQ: SOLUTIONS
1
Hard
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Analyzing
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Two components A and B form an ideal solution. The mole fractions of and in ideal solution are and , while that of in vapour phase, these components have their mole fractions as and . Then, the slope and intercept of plot of vs. will be:
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Correct option: B
The correct answer is B () because the equation derived from Raoult's law and Dalton's law of partial pressures gives these slope and intercept values.
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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.