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The osmotic pressure of a dilute solution of an ionic compound X Y in water is four times that of a solution 0.01 M B a C l 2 in water. Assuming complete dissociation of the given ionic compounds in water, the concentration of X Y ( i n m o l L - 1 ) in solution is

Options

  1. A4 × 10 - 2
  2. B16 × 10 - 4
  3. C4 × 10 - 4
  4. D6 × 10 - 2

Correct answer

D. 6 × 10 - 2

Step-by-step solution

Osmotic pressure π = i × C R T i = Van't hoff factor According to question, for XY i = 2 ,   B a C l 2 i = 3 π XY = 4 × π BaCl 2 2 × C × R T = 4 × 3 × 0.01 × R T C = 6 × 0.01 = 0.06   M

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