MCQ
Which of the following statements is false?
  • Two different solutions of sucrose of the same molality prepared in different solvents will have the same depression in the freezing point.
  • B
    The osmotic pressure of a solution is given by the equation  π = CRT  (where C is the molarity of the solution)
  • C
    Decreasing order of osmotic pressure for 0.01M aqueous solutions of barium chloride, potassium chloride, acetic acid and sucrose is  $\ce{BaCl2 > KCl > CH3COOH > Sucrose}$
     
  • D
    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

Answer

Correct option: A.
Two different solutions of sucrose of the same molality prepared in different solvents will have the same depression in the freezing point.
  1. Two different solutions of sucrose of same molality prepared in different solvents will have the same depression in freezing point.
Explanation:
Tf = 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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