The figure below is showing two chambers A and B having different concentration of solutions separated by a semi-permeable membrane. Identify the correct statement.
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Osmosis is the movement of solvent from an area of lower solute concentration to an area of higher solute concentration.
Movement of solute molecules takes place from chamber 'B' to chamber 'A' till equilibrium.
There is no movement of solvent between chamber 'A' and 'B'.
Movement of solvent molecules takes place from chamber 'A' to chamber 'B' till equilibrium.
Movement of solvent molecules takes place from chamber 'B' to chamber 'A' till equilibrium.
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The Correct Option isD
Solution and Explanation
Step 1: Understanding the principle of osmosis.
Osmosis is the movement of solvent molecules (usually water) across a semi-permeable membrane from an area of lower solute concentration to an area of higher solute concentration. Step 2: Analyzing the options. (A) Movement of solute molecules takes place from chamber 'B' to chamber 'A' till equilibrium: Incorrect. This would not occur in osmosis, where only solvent moves, not solute. (B) There is no movement of solvent between chamber 'A' and 'B': Incorrect. Solvent movement occurs in osmosis. (C) Movement of solvent molecules takes place from chamber 'A' to chamber 'B' till equilibrium: Incorrect. Solvent moves from high to low solute concentration, so it should move from 'B' to 'A'. (D) Movement of solvent molecules takes place from chamber 'B' to chamber 'A' till equilibrium: Correct. This is the correct description of osmosis. Step 3: Conclusion.
The correct answer is (D) Movement of solvent molecules takes place from chamber 'B' to chamber 'A' till equilibrium, as this follows the principle of osmosis.
