Question

Which of the following set of polymers are used as fibre?
(i) Teflon
(ii) Starch
(iii) Terylene
(iv) Orlon

• A. (i) and (ii)
• B. (ii) and (iii)
• C. (iii) and (iv)
• D. (i) and (iv)

Hint:

Terylene and Orlon are fibres due to their strength, durability, and textile usability.

Answer 1

The Correct Option is C

To determine which polymers from the given list are used as fibers, we need to examine each option: 

1. Teflon (i): Teflon, or polytetrafluoroethylene (PTFE), is known for its non-stick properties and chemical resistance. It is not typically used as a fiber but rather as a surface coating material.
2. Starch (ii): Starch is a natural polymer obtained from plants and is primarily used as a food ingredient or in industrial applications like adhesives. It is not used as a fiber.
3. Terylene (iii): Terylene, a trade name for polyester, is a well-known synthetic fiber used in the textile industry. Its properties, such as high strength, elasticity, and resistance to wrinkles, make it ideal for fiber applications.
4. Orlon (iv): Orlon, a trade name for polyacrylonitrile, is a widely used synthetic fiber because of its wool-like feel and warmth. It is commonly used in clothing and home textiles.

Upon reviewing the properties and uses of each polymer, we can conclude that:

• Terylene (iii) and Orlon (iv) are both used as fibers.
• Teflon and Starch do not fit the typical definition of fiber materials in this context.

Therefore, the correct answer is option (iii) and (iv), which corresponds to Terylene and Orlon, respectively.

Answer 2

Terylene and Orlon are classified as fibres due to their structural properties and usability in fabric production. Terylene, a type of polyester, is widely used for making textiles due to its strength, durability, and resistance to stretching. Orlon, a type of acrylic polymer, is also used as a fibre because of its wool-like texture and lightweight nature. Teflon and starch do not have fibre-forming characteristics, which makes them unsuitable in this context.