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Select the correct statement from the fo...

Select the correct statement from the following

A

Osmotic pressure is the negative pressure applied on hypertonic solution to stop osmosis .

B

Osmosis potential is positive.

C

More is the solute concentration of solution , more will be the pressure required to prevent water from diffusing in.

D

The net direction and the rate of osmosis does not depend on the pressure gradient nor on concentration gradient .

Text Solution

AI Generated Solution

The correct Answer is:
To solve the question, let's analyze each statement provided and determine which one is correct. 1. **Statement 1**: "Osmotic pressure is the negative pressure applied on hypertonic solution to stop osmosis." - **Analysis**: This statement is incorrect. Osmotic pressure is actually a positive pressure that needs to be applied to a hypertonic solution to prevent the movement of water into it. Therefore, this statement is false. 2. **Statement 2**: "Osmosis potential is positive." - **Analysis**: This statement is also incorrect. Osmotic potential (or osmotic pressure) is defined as the potential of water to move into a solution due to the presence of solute. It is always negative because pure water has an osmotic potential of zero, and adding solute decreases the water potential, making it negative. Thus, this statement is false. 3. **Statement 3**: "More is the solute concentration of the solution, more will be the pressure required to prevent the water from diffusing in." - **Analysis**: This statement is correct. As the solute concentration increases in a solution, the osmotic pressure increases, meaning that more pressure is required to prevent water from moving into the solution. Therefore, this statement is true. 4. **Statement 4**: "The net direction and the rate of osmosis does not depend on the pressure gradient nor on the concentration gradient." - **Analysis**: This statement is incorrect. The direction and rate of osmosis are influenced by both the concentration gradient (difference in solute concentration) and the pressure gradient. Therefore, this statement is false. **Conclusion**: The correct statement is Statement 3. ### Final Answer: The correct statement is: "More is the solute concentration of the solution, more will be the pressure required to prevent the water from diffusing in."
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