The osmotic pressure of equimolar solutions of BaCl2, NaCl and sucrose will be in the order:

Correct answer: D. BaCl2 > NaCl > Sucrose

  • A. Sucrose > NaCl > BaCl2
  • B. Sucrose > BaCl2 > NaCl
  • C. NaCl > BaCl2 > Sucrose
  • D. BaCl2 > NaCl > Sucrose

Explanation

Osmotic pressure is a colligative property, and the more the number of particles more the osmotic pressure. π=iCRT Hence, BaCl2>NaCl>Sucrose since the concentration is the same and i for BaCl2 is 3, NaCl is 2 and sucrose is 1.

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