Urinalysis and Body Fluids 6th Edition by Majorie DiLorenzo, Susan Strasinger

Exercise 32

Which of the following colligative properties is not stated correctly?

A. The boiling pointing is raised by solute

B. The freezing point is raised by solute

C. The vapor pressure is lowered by solute

D. The osmotic pressure is raised by solute

Step 1 of 2

Colligative property:

Colligative property is related to number of particles of solute to solvent molecules of solution.

Properties of colligative:

• Decrease in Vapour pressure

• Raising of Boiling point

• Depression of Freezing point

• Osmotic pressure

Solvent’s vapor pressure is decreased by non-volatile solute addition to get a solution.

• When liquid solutions are slightly beyond the boiling point of solvent it gets stable then boiling point increases.

• Liquid solution slightly below the freezing point of solvent gets stable and freezing point decreases.

• The osmotic pressure is comparative to the solute particle and elevated by solute.

Therefore, “freezing point raised by solute” as a colligative property not a correct statement. Hence, the correct answer is option .