Answer:
When an oily (dirty) piece of cloth is put into soap solution, the hydrocarbon part of the soap molecule
attaches itself to the oily drop, and the - 
end orients itself towards
water. The Na+ ions in solution arrange themselves around the 
ions. The negatively charged
micelle so formed entraps the oily dirt. The negatively charged micelles repel each other due to the
electrostatic repulsion. As a result, the tiny oily dirt particles do not come together and get washed
away in water during rinsing.
You need to login to perform this action.
You will be redirected in
3 sec
