What are detergents ? Give their scheme of classification. Why are detergents preferred over soaps?

Explanation

Detergents are sodium or potassium salts of benzene sulphonic acids or quaternary ammonium salts oflong chain tertiary amines.
Types ofdetergents: i) Cationic detergents ii) Anionic detergents iii)Non-ionic detergents
Advantages of detergents over soaps
i) They form froth even with hard water.
ii) They can work even with acidic water.
iii)They can be used for woollen garments.
iv) They are less polluting than soaps.