JEE Questions for Chemistry Solutions Quiz 16 - MCQExams.com

For an ideal binary liquid solution with poA > poB , which of the following relations between xA (mole fraction of A in liquid phase) and yA (mole fraction of A in vapour phase) is correctly represented?
  • xA = yA
  • xA > yA
  • xA < yA
  • xA and yA cannot be correlated with each other
Which of the following would exert maximum osmotic pressure?
  • Decinormal aluminium sulphate
  • Decinormal barium chloride
  • Decinormal sodium chloride
  • A solution obtained by mixing equal volumes of (and (and filtering.
Which one of the following is an expression of Raoult’s law if PA is the partial pressure of the solvent in a solution, PoA is the partial pressure of the pure solvent and if XA and XB are the mole fraction of the solute and the solvent respectively ?
  • PA = PoA XA
  • PA = PoA XA(1/XB)
  • PA = PoA XB
  • PoA = P (XA/XB)
The vapour pressure of solution of 5g of non-electrolyte in 100g of water at a particular temperature is 2985 N m-2. The vapour pressure of pure water at that temperature is 3000 Nm-2. The molecular weight of the solute is
  • 180
  • 90
  • 270
  • 200
Water and chlorobenzene are immiscible liquids. Their mixture boils at 90oC under a reduced pressure of 9.58 ×104 Pa The vapour pressure of pure water at 90oC is 7.03 × 104 Pa and molecular weight of chlorobenzene is 112.5. On what percent basis, chlorobenzene in the distillate is equal to:
  • 50
  • 60
  • 70
  • 80
Which of the following alternative is correct for physical state of solute and solvent for a solution of camphor in N2 gas ?
  • solid, gas
  • solid, liquid
  • gas, solid
  • gas, gas
In Binary ideal solution forms by liquid A and B, at constant temperature, mole-fraction of liquid A in vapour state is 0.4 and its partial vapour pressure is 400 mm, then what will be the partial vapour pressure of B ?
  • 600 mm
  • 300 mm
  • 500 mm
  • 200 mm
Choose the correct option for true and false statement. (For true statement ‘T’ and for false statement ‘F’ is used)
(i) solubility of gas in liquid increases with increase in partial pressure of the gas.
(ii) solubility of gas in liquid increases with increase in temperature
(iii) solubility of gas in liquid is KH is less
(iv) solubility of gas in liquid increases, as partial pressure of gas decreases and temperature increases.
  • TTFF
  • FTTT
  • TFFF
  • FFTT
What is the normality of an aqueous solution of 0.5 Al2(SO4)3 ?
  • 3 N
  • 1 N
  • 1.5 N
  • 2.5 N
At 353 K temperature, the Vapour pressure of pure liquids A and B are 600mm and 800 mm respectively. If mixture of liquids A and B boils at 353 K and 1 bar pressure, then mole proportion of B in percent is -
  • 80%
  • 60%
  • 20%
  • 40%
0:0:1


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