MCQ
Which of the following statements is false?
  • A
    Units of atmospheric pressure and osmotic pressure are the same.
  • In reverse osmosis, solvent molecules move through a semipermeable membrane from a region of lower concentration of solute to a region of higher concentration.
  • C
    The value of molal depression constant depends on nature of solvent.
  • D
    Relative lowering of vapour pressure, is a dimensionless quantity.

Answer

Correct option: B.
In reverse osmosis, solvent molecules move through a semipermeable membrane from a region of lower concentration of solute to a region of higher concentration.
In reverse osmosis solvent molecules move through a semipermeable membrane from a region of higher concentration of solute to a region of lower concentration, therefore the given statement at $(ii)$ is false.

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