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Directions: This questions consist of two statements, each printed as Assertion and Reason. While answering this questions, you are required to choose any one of the following four responses.



Assertion : When a solution is separated from the pure solvent by a semi- permeable membrane, the solvent molecules pass through it from pure solvent side to the solution side

Reason : Diffusion of solvent occurs from a region of high concentration solution to a region of low concentration solution.

  • a)
    If both Assertion and Reason are correct and the Reason is a correct explanation of the Assertion.

  • b)
    If both Assertion and Reason are correct but Reason is not a correct explanation of the Assertion.

  • c)
    If the Assertion is correct but Reason is incorrect.

  • d)
    If both the Assertion and Reason are incorrect.

Correct answer is option 'B'. Can you explain this answer?
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Directions: This questions consist of two statements, each printed as ...
Assertion is a correct statement but reason is a wrong statement because a semipermeable membrane permits solvent molecules to pass through a solution of lower concentration to that of higher concentration Flow of solvent molecule from solvent side to solution side through semipermeable membrane is called osmosis.
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Directions: This questions consist of two statements, each printed as ...
Assertion and reason both are correct statements but reason is not the correct explanation of assertion.
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. Solvent molecules always flow frim lower concentration to higher concentration of solution.
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Directions: This questions consist of two statements, each printed as ...
Understanding the Assertion and Reason
The assertion and reason statements address the behavior of solvent molecules when separated by a semi-permeable membrane.
Assertion Explained
- The assertion states that when a solution is separated from pure solvent by a semi-permeable membrane, solvent molecules migrate from the pure solvent side to the solution side.
- This process is known as osmosis, where solvent moves to dilute the concentration of solute in the solution, aiming for equilibrium.
Reason Explained
- The reason provided claims that diffusion of solvent occurs from a region of high concentration solution to a region of low concentration solution.
- However, this explanation is misleading. In osmosis, solvent molecules move from a region of low solute concentration (pure solvent) to a region of high solute concentration (the solution).
Conclusion
- Both the assertion and reason are correct in their own contexts:
- The assertion correctly describes the osmosis process.
- The reason incorrectly describes the direction of solvent movement, as it should state movement from low to high solute concentration, not from high concentration solution to low concentration solution.
Thus, the correct response is option 'B': Both Assertion and Reason are correct, but Reason is not a correct explanation of the Assertion.
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