Tag: synthetic fibres

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Questions Related to synthetic fibres

Multiple choice chemistry substances in daily use rayon and nylon synthetic fibres synthetic fibres or threads polyester and acrylic

Bed sheets are made up of:

  1. rayon and wool

  2. rayon and plastic

  3. rayon and nylon

  4. rayon and cotton
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Bedsheets are made by blended fibre i.e. a mixture of rayon and cotton. Rayon is a versatile fibre and is widely claimed to have the same comfort properties as natural fibres, although the drape and slipperiness of rayon textiles are often more like nylon. It can imitate the feel and texture of silk, wool, cotton and linen. The fibres are easily dyed in a wide range of colours.

Multiple choice chemistry substances in daily use rayon and nylon synthetic fibres synthetic fibres or threads polyester and acrylic

Which of the following is a disadvantage of nylon?

  1. They do not shrink

  2. They are less resistant to sun light

  3. They are resistant to insects and molds

  4. They can be easily dyed
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Nylon fabrics have low resistance to sunlight. 


They are not suitable for curtains or draperies as it is weakened by the exposure to sunlight.

Hence the correct option is B.

Multiple choice chemistry substances in daily use rayon and nylon synthetic fibres synthetic fibres or threads polyester and acrylic

Which of the following statement is true?

  1. A nylon thread is stronger than a steel wire

  2. Rayon is a natural fibre made from wood pulp

  3. Cotton is not a polymer

  4. Fabric made from polyester can get wrinkles easily
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

A. Nylon thread is stronger than steel wire because nylon fibre is made up of strong amide linkages which gives it strength.

B. Rayon is a regenerated fibre so it is not natural.

C. Cotton is a polymer of cellulose.

D. Polyester materials are wrinkle-free.

Multiple choice chemistry substances in daily use rayon and nylon synthetic fibres synthetic fibres or threads polyester and acrylic

A silk saree and a nylon saree, both of same length are put to dry under sun. Which one will dry faster?

  1. Silk saree

  2. Nylon saree

  3. Both will take same time

  4. Depends on weather condition
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Nylon has various characteristics like a higher impact resistance, a more rapid moisture absorption, greater elasticity and elastic recovery. Nylon absorbs moisture readily as compared to silk so nylon saree dries up faster than silk saree in the sun.

Multiple choice chemistry substances in daily use rayon and nylon synthetic fibres synthetic fibres or threads polyester and acrylic

Ropes made of nylon and polyester are commonly used in cranes and elevators because :

  1. Nylon is inflammable

  2. It is a good conductor of heat and electricity

  3. It is very strong, fairly elastic and light weight

  4. It is heat resistant
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Ropes made of nylon and polyester are commonly used in cranes and elevators because It is very strong, fairly elastic and light weight.

Multiple choice chemistry substances in daily use rayon and nylon synthetic fibres synthetic fibres or threads polyester and acrylic

Rayon is different from synthetic fibres because :

  1. it has a silk appearance

  2. it is obtained from wood pulp

  3. it can also be woven like those of natural fibres

  4. it is natural
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Rayon is manufactured regenerated cellulose fiber. It is made from purified cellulose from wood pulp which is converted into soluble compound which is chemically solidified to form synthetic fiber. Because rayon is manufactured from naturally occurring polymers, it is considered a semi-synthetic fiber.