A semi-permeable membrane is stretched across a chamber filled with water. The membrane is only permeable to water. 60 mg of salt is added to the left side of the chamber. Which of the following is likely to occur?

Water will move towards the right side

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Salt will move towards the right side

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Water will move towards the left side

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Salt will move towards the left side

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Solution

The correct option is C
Water will move towards the left side

After the addition of salt, the concentration of solute on the left side is higher than that of the right side. To balance the concentration level, water will move towards the left side due to osmosis.

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