1.

People use a variety of methods to wash clothes, Usually after adding the soap, they 'beat' the clothes ona stone or beat it with a paddle scrub with a brush or the mixture is agitated in a washing machine. Why is agitation necessaryto be clean clothes?

Answer»

Solution :A soap molecule has two parts NAMELY hydrophobic and hydrophilic.With the help of these it attacks to the GREASE or dirt particle and forms a cluster called micelle.These micelles remain suspended as a COLLOID .To remove these micelles,it is necessary to agitate clothes.


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