Explain with help of an activity that synthetic fibres melt on heating.
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A synthetic fibre is also a chain or small units joined together. Each small unit is actually a chemical substance. Many such small units combine to form a large single unit called a polymer.
The word ‘polymer’ comes from two Greek words; poly meaning many and mere meaning part/unit. So, a polymer is made of many repeating units.
Polymers occur in nature also. Cotton, for example, is a polymer called cellulose. Cellulose is made up of a large number of glucose units.
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Synthetic fibres are made up of small atoms or units.
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