Which of the following term is used for phenomenon: "liquid particles…

The correct answer is option 3. evaporation.

The term used for the phenomenon where "liquid particles go into vapour phase below its boiling point" is Evaporation.

Evaporation is the process by which a liquid transitions into its gaseous phase at temperatures below its boiling point. It occurs because some particles at the surface of the liquid have enough kinetic energy to overcome the attractive forces holding them together and escape into the surrounding air.

Here's why the other options are not correct:

Sublimation: This refers to the direct change of a solid into a gas phase, bypassing the liquid state altogether.

Condensation: This is the opposite of evaporation, where vapor molecules in the air transition back into a liquid state.

Deposition: Similar to sublimation, deposition describes the direct change of a gas into a solid state without going through the liquid phase.