Van't Hoff factors of aqueous solutions of X, Y, Z are 1.8, 0.8 and 2.5. Hence, their (assume equal concentrations in all three cases) then correct order is :-
  • a)
     B.P. : X < Y < Z
  • b)
    F.P. : Z > X > Y
  • c)
    Osmotic pressure : X = Y = Z
  • d)
    Vapour pressure : Y > X > Z
Correct answer is option 'A'. Can you explain this answer?
Related Test: Test Level 2: Solutions

Class 12 Question

Ved Parkash
Sep 27, 2020
The correct answer is Option A.
ΔTb = Kb . m . i 
‘i’ is proportional to b.p. So ‘i’ increases with b.p.
Thus, Z>X>Y 
 

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