Polymers NEET MCQ

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1. Which of the following polymers is formed by condensation polymerization?

a) Polyethylene
b) PVC
c) Nylon 6,6
d) Polypropylene

Answer:

c) Nylon 6,6

Explanation:

Nylon 6,6 is formed by condensation polymerization of hexamethylenediamine and adipic acid.

2. Bakelite is an example of:

a) Thermoplastic polymer
b) Thermosetting polymer
c) Elastomer
d) Fibre

Answer:

b) Thermosetting polymer

Explanation:

Bakelite, a phenol-formaldehyde resin, is a thermosetting polymer that becomes hard and insoluble when heated.

3. Natural rubber is a polymer of:

a) Propene
b) Vinyl chloride
c) Styrene
d) Isoprene

Answer:

d) Isoprene

Explanation:

Natural rubber is a polymer of isoprene (2-methyl-1,3-butadiene).

4. Which of the following is a biodegradable polymer?

a) Nylon 6
b) Polyethylene
c) Polythene terephthalate (PET)
d) Polylactic acid (PLA)

Answer:

d) Polylactic acid (PLA)

Explanation:

Polylactic acid (PLA) is derived from renewable resources and is biodegradable.

5. The polymer used for making non-stick cookware is:

a) Polyvinyl chloride
b) Teflon
c) Bakelite
d) Melamine

Answer:

b) Teflon

Explanation:

Teflon is the brand name for polytetrafluoroethylene (PTFE), which has non-stick properties.

6. Which polymer is known as poly(ethene)?

a) Polypropylene
b) Polystyrene
c) Polyethylene
d) PVC

Answer:

c) Polyethylene

Explanation:

Polyethylene is the polymer of ethene and is also known as poly(ethene).

7. Which of the following is a condensation polymer?

a) PVC
b) Polyethylene
c) Terylene
d) Polystyrene

Answer:

c) Terylene

Explanation:

Terylene (or Dacron) is a condensation polymer formed from ethylene glycol and terephthalic acid.

8. The repeating unit in a polymer is called:

a) Nucleotide
b) Residue
c) Monomer
d) Ligand

Answer:

c) Monomer

Explanation:

Monomers are the repeating units that bind together to form a polymer.

9. Which of the following is a synthetic rubber?

a) Neoprene
b) Cellulose
c) Chitin
d) Keratin

Answer:

a) Neoprene

Explanation:

Neoprene is a synthetic rubber produced by the polymerization of chloroprene.

10. Which polymer is resistant to the action of concentrated sulfuric acid?

a) PVC
b) Polyethylene
c) Teflon
d) Polystyrene

Answer:

c) Teflon

Explanation:

Teflon is resistant to most chemicals, including concentrated sulfuric acid.

11. Which of the following is used for making parachutes and stockings?

a) Nylon 6,6
b) PVC
c) Bakelite
d) Rubber

Answer:

a) Nylon 6,6

Explanation:

Nylon 6,6 is a strong and lightweight material ideal for parachutes and stockings.

12. Which polymer is used for making bottles, toys, and pipes?

a) Teflon
b) PVC
c) Nylon 6,6
d) Polyethylene

Answer:

d) Polyethylene

Explanation:

Polyethylene is widely used for making bottles, toys, and pipes because of its versatility.

13. The monomer of Bakelite is:

a) Phenol and Formaldehyde
b) Ethene
c) Vinyl chloride
d) Propene

Answer:

a) Phenol and Formaldehyde

Explanation:

Bakelite is formed from the polymerization of phenol and formaldehyde.

14. Which of the following is an addition polymer?

a) Terylene
b) Nylon
c) Polyvinyl chloride
d) Glyptal

Answer:

c) Polyvinyl chloride

Explanation:

Polyvinyl chloride (PVC) is formed by the addition polymerization of vinyl chloride monomer.

15. Polymers that can be molded again and again are called:

a) Thermosetting polymers
b) Thermoplastic polymers
c) Elastomers
d) Fibers

Answer:

b) Thermoplastic polymers

Explanation:

Thermoplastic polymers can be remolded and reused multiple times upon heating.

16. Which of the following is not a semi-synthetic polymer?

a) Rayon
b) Cellulose acetate
c) PVC
d) Glyptal

Answer:

c) PVC

Explanation:

PVC is a fully synthetic polymer, while Rayon and Cellulose acetate are semi-synthetic polymers.

17. The intermolecular forces of attraction in elastomers are:

a) Hydrogen bonds
b) Dipole-dipole interactions
c) Vander Waals forces
d) Ionic bonds

Answer:

c) Vander Waals forces

Explanation:

Elastomers have weak Vander Waals forces of attraction making them stretchable.

18. Buna-N is copolymer of:

a) 1,3-butadiene and styrene
b) Ethene and propene
c) 1,3-butadiene and acrylonitrile
d) Vinyl chloride and acetylene

Answer:

c) 1,3-butadiene and acrylonitrile

Explanation:

Buna-N is a copolymer formed by the polymerization of 1,3-butadiene and acrylonitrile.

19. Polymers which are derived from petroleum or natural gas are called:

a) Natural polymers
b) Semi-synthetic polymers
c) Biopolymers
d) Synthetic polymers

Answer:

d) Synthetic polymers

Explanation:

Polymers derived from petroleum or natural gas are fully synthetic polymers.

20. The process of forming polymers by repeated addition of monomers is called:

a) Condensation polymerization
b) Substitution reaction
c) Hydrolysis
d) Addition polymerization

Answer:

d) Addition polymerization

Explanation:

In addition polymerization, monomers add up without the elimination of any byproduct.

Related MCQ (Multiple Choice Questions) :

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