Which of the following depends only on the number of particles of the solute present in the dilute solution?

All of these

The properties of dilute solution which depends only on the number of particles of solute (molecules or ions) present in the solution and not on their nature are called colligative properties.

The important colligative properties are:

(1) Relative lowering in Vapour pressure

(2) Elevation in boiling point

(3) Depression in freezing point

(4) Osmotic pressure