Question

Osmosis takes place between two solutions separated by a semipermeable membrane because

• A. Water molecules move from more dilute solution to less dilute solution
• B. Solute molecules move from less dilute solution to more dilute solution
• C. Water molecules move from less dilute solution to more dilute solution
• D. Solute molecules move from more dilute solution to less dilute solution

Answer 1

The correct option is A Water molecules move from more dilute solution to less dilute solution

Osmosis is a passive process, which does not require energy for the movement of a water molecule through the semipermeable membrane. Hence, this movement occurs from higher solvent concentration to lower solvent concentration. In other words, movement occurs from more dilute solution to less dilute solution. Therefore, option A is correct.