Chapter 4: Carbon and Its Compounds

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Q
Carbon and Its Compound

Question:

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:

When a dirty cloth is soaked in a soap solution, the hydrocarbon chain of the micelle attached the oil or dirt particle on the surface of the cloth while the ionic end of the soap remains attached to water. When it is agitated in a soap solution, the greasy particles get spread in water making the soap water dirty. In this way, the dirty cloth is cleaned.


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