Fibre

Q. Which of the following is not a characteristic features of fibres?

1. High tensile strength
2. Amorphous structure
3. Close packing of chains
4. Strong intermolecular forces

Q. Which of the following polymer is an example of fibre?

1. Dacron
2. Nylon-6, 6
3. All of these
4. Silk

Q. The intermolecular forces between the molecular chains of fibres are?

1. Vander Waals' forces
2. Hydrogen bonds
3. Dipole-dipole interactions
4. Cross-links

Q.

Which of the following polymers are used as fibre?

(a) Polytetrafluoroethane

(b) Polychloroprene

(c) Nylon

(d) Terylene

Q. Which of the following polymer is an example of fibre?

1. Dacron
2. Silk
3. Nylon-6, 6
4. All of these

Q. Which of the following is not a characteristic features of fibres?

1. High tensile strength
2. Amorphous structure
3. Strong intermolecular forces
4. Close packing of chains

Q. The intermolecular forces between the molecular chains of fibres are?

1. Dipole-dipole interactions
2. Vander Waals' forces
3. Hydrogen bonds
4. Cross-links

Q. Which of the following fibre is also known as regenerated fibre?

1. Nylon
2. Rayon
3. Polyester
4. Acrylon

Q. Assertion: It is advised not to wear synthetic clothes while working in a laboratory.
Reason: The synthetic fibre melts on heating.

1. Both assertion and reason are true and the reason is the correct explanation of assertion.
2. Both assertion and reason are true but the reason is not the correct explanation of assertion.
3. The assertion is true but the reason is false.
4. The assertion is false but the reason is true.

Q. Which of the following has the same monomer unit?

1. Nylon and cellulose
2. Polyester and nylon
3. Cellulose and rayon
4. Rayon and nylon