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JEE Main levelOne or more correct optionsDifficulty 2 of 3so143

Which of the following statements about osmosis and osmotic pressure are correct?

  1. AAt constant concentration, the osmotic pressure is directly proportional to the absolute temperature.
  2. BIn osmosis, the net flow of solvent through a semipermeable membrane is from the solution of lower solute concentration to that of higher concentration.
  3. CFor dilute solutions of non-electrolytes, the osmotic pressure at a given temperature and concentration does not depend on the identity of the solute.
  4. D glucose and (fully dissociated) have the same osmotic pressure at the same temperature.

Answer: A, B, C

Solvent flows towards higher solute concentration, so that statement holds. For dilute non-electrolytes , which depends only on concentration and temperature, so the statements on solute identity and on proportionality to are correct. Fully dissociated gives twice the particles of glucose, so the statement of equal osmotic pressure is false.
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