Class 10 Science - Chapter Carbon and Its Compound NCERT Solutions | People use a variety of methods to wash

Welcome to the NCERT Solutions for Class 10th Science - Chapter Carbon and Its Compound. This page offers a step-by-step solution to the specific question from Excercise ".$ex_no." , Question 2: people use a variety of methods to wash clothes u....
Question 2

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

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

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