The cleaning action of soap and detergent in water is due to the forma

The cleaning action of soap and detergent in water is due to the formation of

Micelle
Salt
Base
Acid
This question was previously asked in
UPSC NDA-1 – 2015
The correct answer is Micelle. Soap and detergent molecules form structures called micelles in water, which are responsible for their cleaning action.
Soap and detergent molecules have a hydrophilic (water-attracting) head and a hydrophobic (oil/grease-attracting) tail. In water, these molecules aggregate into spherical structures called micelles, where the hydrophobic tails are oriented inward, away from the water, and the hydrophilic heads are oriented outward, in contact with the water. Oily or greasy dirt particles get trapped within the hydrophobic core of these micelles and are thus suspended in water, allowing them to be washed away.
While soap itself is a salt (sodium or potassium salt of fatty acids), and soap solutions are typically slightly basic due to hydrolysis, their primary cleaning mechanism relies on micelle formation and the ability of micelles to emulsify fats and oils. Acids are not relevant to the cleaning action of soaps and detergents.