Solution:
Concept- Surfactant molecules that have been dispersed in a liquid colloid to form micelles. They are created when amphiphilic molecules self-assemble. Both the hydrophilic/polar region (head) and the hydrophobic/nonpolar region are present in the structures (tail).When in contact with the surrounding solvent, the hydrophilic head regions of a micelle in an aqueous solution form an aggregate, locking the hydrophobic single-tail portions inside the micelle's centre. In other words, the nonpolar region forms the micelle's core while the polar region faces the micelle's exterior surface. Both hydrophilic and hydrophobic agents can be delivered by micelles.
Depending on the composition, micelles are typically spherical and range in size from 2 to 20 nm. Other phases are also conceivable, including ellipsoids, cylinders, and bilayers. The molecular geometry of a micelle's surfactant molecules, as well as factors like surfactant concentration, temperature, pH, and ionic strength, influence the micelle's form and size. The most popular techniques for creating micelles are solvent evaporation, solid dispersion, and oil in water emulsion.
Only above a specific temperature known as the Kraft temperature and above a specific concentration known as the crucial micelle concentration do micelles develop (CMC).
Hence, option 2 is correct.
