13.A: When a solution is seperated from the pure solvent by a semipermeable membrane, the solvent molecules pass through it from pure solvent side to the solution side. R: Diffusion of solvent occurs from a region of high concentration solution to a region of low concerntration solution.

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Assertion (A) When a solution is separated from the pure solvent by a semipermeable membrane, the solvent molecules pass through it from pure solvent side to the solution side.
Reason (R) Diffusion of solvent occurs from a region of high concentration solution to a region of low concentration solution.

The process of movement of solvent through a semipermeable membrane from the solution to the pure solvent by applying excess pressure on the solution side is called

Question 6
Which among the following defines osmosis the best?

(a) Movement of water molecules from a region of higher concentration to a region of lower solute concentration through a semipermeable membrane
(b) Movement of solvent molecules from its higher concentration to a lower concentration
(c) Movement of solvent molecules from a higher concentration to a lower concentration of solution through a permeable membrane
(d) Movement of solute molecules from a lower concentration to a higher concentration of a solution through a semipermeable membrane

The phenomenon of flow of solvent molecules through a semi permeable membrane from pure solvent to solution is called

Q. The movement of solvent molecules into the region of higher solute concentration through a semipermeable membrane is called

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