Question

Why people use a variety of methods to wash clothes. Usually after adding the soap, they 'beat' the clothes on a stone, or beat it with a paddle, scrub with a brush or the mixture is agitated in a washing machine why is agitation necessary to get clean clothes

Answer 1

There are two parts in a soap molecule - hydrophobic and hydrophilic. Soap molecules attach themselves to the grease or dirt particles with the help of these and form a cluster called micelle. The micelles remain suspended as a colloid. It is necessary to agitate the clothes in order to remove these micelles which have entrapped the dirt.

Answer 2

Answer:

BTS

A soap molecule has two parts namely hydrophobic and hydrophilic. With the help of these, it attaches to the grease or dirt particle and forms a cluster called micelle. These micelles remain suspended as a colloid. To remove these micelles (entrapping the dirt), it is necessary to agitate clothes.