Explain the cleansing action of soaps and detergents .
Answers
Answer:
All the soaps and detergents contain two type of characteristics group i.e a water soluble (Pydolrophylic ) group and oil solution (Lyophillic or lipophilic group ) As a result one end of the molecule of soap detergent tends to go into oil phase and other tends to go into water phase with the net result that material (Soap or detergent) concentrates at the the solution or interace .
The dirt is generally held to a dirty surface by a thin film of an oil and grease . when it is treated with soap solution , the non - polar hydrocarbon chain of soap or detergent dissolves in oil or Grease and the carboxylate part of the soap of the sulphate group of the detergent is held by surrounding water ( in fig below ) ,this lowers the surface tension between water and grease .
As result a stable emulsion of oil in water is formed . when the surface or the cloth is machanically scrubbed the loosened dirt particles are absorbed by colloidal soap particles and ultimately washed away be water .
_______________________________
Hope it's helpful
#Answerwithwuality&#BAL
