Which of the following statements is false?

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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