Question

Question 4: Choose the odd one.
Nylon
Cotton
• Acrylic
Polyester​

Answer 1

Question:

Choose the odd one out:

• Nylon
• Cotton
• Acrylic
• Polyester

Answer:

$\boxed {\sf {\blue {Cotton}}}$ is the odd one out amongst all the four fibres.

Reason:

Nylon, Acrylic and Polyester are all synthetic fibres, whereas cotton is the only natural fibre.

Therefore cotton is the odd one out,  as it is the only natural fibre amongst all the other fibres.

More to know:

What are fibres?

Fibres are the thin strands or threads, from which fabrics (clothes) are made.

Fibres (are spun) ⇒ (to make) yarns (are woven and knitted) ⇒ (to make) fabrics and clothes.

Depending upon the source of fibres or from where are they obtained, they can be classified into two types:

• Natural fibres: Are obtained from natural sources like plants and animals.

E.g.⇒ Silk, flax, cotton, jute and silk.

• Synthetic fibres: These fibres are man-made or artificial fibres.

E.g.⇒ Nylon, Polyester, Acrylic and Rayon.

☆ Rayon is regarded as artificial silk as it has lustre similar to that of silk but its chemical properties are similar to that of cotton.

☆ Acrylic is the artificial form of wool as its appearance closely resembles to that of wool.

☆ A single fibre of nylon is stronger than a stell wire of same thickness.

Infact,

POLYESTER > NYLON > STEEL

(on basis of their strength)

Answer 2

$\LARGE{\underline{\underline{\sf{Question:-}}}}$

4. Choose the odd one out:

• Nylon
• Cotton
• Acrylic
• Polyester

$\huge{\underline{\underline{\sf{Answer:-}}}}$

‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎The odd one out among the four is $\large{\underline{\sf{\red{cotton}}}}$. Because, cotton is a natural fibre. But nylon, acrylic and polyester are artificial fibres.

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A FIBRE:

‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎A fibre is a thin strand like structure, obtained from natural sources or artificially made which are then spun into yarns and then woven into fabrics.

Fibres are classified into two types:

• Natural fibres.
• Artificial fibres.

NATURAL FIBRES:

‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ The fibres which are obtained from natural sources like plants and animals are natural fibres.

Examples: Jute (plant stem), Silk (silkworm- animal), Cotton (fruit of plant), Wool (sheep- animal)

‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎Natural fibres are eco friendly and good absorbers of sweat, so it is mostly preferred in clothings.

ARTIFICIAL FIBRES:

‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎The fibres which are artificially made and synthesized by humans are artificial fibres.

Examples: Rayon, Acrylic, Nylon, etc.

‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎These fibres are used to make cloth materials and in the manufacture of fishing nets, ropes, raincoats, etc. Artificial fibres are preferred than natural fibres due to its following properties:

• High durability.
• Doesn't gets wrinkled easily.
• Easily stretched.
• Strong.
• Cheap.

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