Synthetic fibres are synthesized from raw material called__________ (Fill in the blanck)
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petrochemicals..........
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Answer:
Synthetic fibers are produced from raw materials called petrochemicals.
Explanation:
Synthetic fibers are so-called because they can be synthesized that is they are made by human beings from other sources. The principal particle is petrochemical which is a non-renewable natural resource which on heating undergoes polymerization to form a variety of products like nylon, rayon etc.
This polymerization takes place at a very high temperature. The thread that is formed is more stable than original cotton and allow less air to pass through them.
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