The process used for transforming salty water into pure water is called

(a) Deliquescence is the process by which a substance absorbs water from the air until it dissolves.
(b) Efflorescence is the process by which a substance loses water from its surface, often as a white powder.
(c) Electric separation is a process that uses an electric field to separate charged particles.

Reverse osmosis is the most effective way to remove dissolved salts from water. It is used in a variety of applications, including drinking water purification, desalination, and wastewater treatment.