Question:
Which of the following statements is false?
(i) Units of atmospheric pressure and osmotic pressure are the same.
(ii) In reverse osmosis, solvent molecules move through a semipermeable
membrane from a region of lower concentration of solute to a region of
higher concentration.
(iii) The value of molal depression constant depends on the nature of the solvent.
(iv) Relative lowering of vapour pressure is a dimensionless quantity.
Solution:
Option (ii) In reverse osmosis, solvent molecules move through a semipermeable
membrane from a region of lower concentration of solute to a region of
higher concentration is the answer.
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