Which of the following is a disadvantage of synthetic fibre? (A)melt before burning (B)repel moisture (C)clothes are garishly lustrous (D)All of the above
Hint :Synthetic fibres are also called man-made fibres. All fabrics are obtained from fibres, whereas fibres are obtained from artificial or man-made sources. They consist of a small unit or a polymer which is made up of many repeating units known as monomers.
Complete Step By Step Answer: Synthetic fibres are cheaper compared to natural fibres. They are stronger than natural fibres. They are more durable than natural fibres. They are dried up in less time. They are easy to maintain and wash. Most of the synthetic fibres have good elasticity. Most of the fabrics are made of synthetic fibres and do not wrinkle easily. The fabrics which are made of synthetic fibres are more readily available than those made of natural fibres. Most of the synthetic fibres can handle heavy loads without breaking. Most synthetic fibres do not absorb moisture but they are affected if washed using hot water. They catch fire easily as compared to natural fibres. Like natural fibres, man-made fibres do not easily take up colours. These fibres can burn faster than the natural fibres. They are prone to damage to heat and they melt easily. Therefore, option D is the correct answer.
Note : Synthetic fibres have bright wear and tear resistance. Because of this, synthetic fibre fabrics are very durable. These fibres have a high lustre and they don’t turn yellow with age. They are also used in the manufacture of ropes, nets and seat belts.