Question

Consider the following figure and choose the correct option: 

Options

• There will be no movement of any solution across the membrane.

• The osmotic pressure of glucose solution is equal to that of NaCl solution.

• The osmotic pressure of NaCl solution is lower than that of glucose solution.

• The osmotic pressure of NaCl solution is higher than that of glucose solution.

Answer 1

The osmotic pressure of NaCl solution is higher than that of glucose solution.

Explanation:

Glucose is a non-electrolyte; it does not dissociate in solution.

Van’t Hoff factor (i) = 1

NaCl is an electrolyte; it dissociates into 2 ions (Na⁺ and Cl⁻).

Van’t Hoff factor (i) = 2

Osmotic pressure of NaCl is higher than osmotic pressure of glucose.