PUMPA - SMART LEARNING
எங்கள் ஆசிரியர்களுடன் 1-ஆன்-1 ஆலோசனை நேரத்தைப் பெறுங்கள். டாப்பர் ஆவதற்கு நாங்கள் பயிற்சி அளிப்போம்
Book Free Demo1. Would you be able to check if water is hard by using a detergent?
Detergent forms lather with both hard and soft water, while only forms lather with soft water. Thus, it is impossible to check whether the water is hard or not by using a .
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?
Why is agitation necessary to get clean clothes?
A soap molecule has two parts, namely hydrophobic and hydrophilic. With the support of these, it binds to the or dirt particle and forms a cluster called a micelle. These micelles remain suspended as a . To clear these micelles (entrapping the dirt), it is necessary to agitate clothes.
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