Chemistry

Polymers and Plastics

1,228 Questions

Polymers and plastics questions explore the properties, synthesis, and applications of various synthetic and natural polymers. Key topics include biodegradable plastics, vulcanization, and polymer nanocomposites. These concepts are frequently tested in science and engineering competitive exams.

Biodegradable plasticsPolymer nanocompositesVulcanization of rubberPolymer molecular weightAsphalt binders

Polymers and Plastics Questions

Multiple choice

CH2=CHC6H5 is a monomer of

  1. polyacrylonitrile

  2. polystyrene

  3. polypropylene

  4. teflon
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Polystyrene is a polymer of styrene (CH2=CHC6H5).

Multiple choice

Glyptal is a polymer of

  1. phenol and formaldehyde

  2. ethylene glycol and phthalic acid

  3. urea and formaldehyde

  4. vinyl chloride
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Glyptal is a polymer of ethylene glycol and phthalic acid.

Multiple choice

~[CO(CH2)4CO-NH(CH2)6NH]n~ is a

  1. thermosetting polymer

  2. homopolymer

  3. condensation polymer

  4. polyester
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Nylon-6,6 (~[CO(CH2)4CO-NH(CH2)6NH]n~) is a condensation polymer obtained by condensation of hexamethylenediamine and adipic acid.

Multiple choice

Plexiglas is another name of __________.

  1. polymethyl methacrylate

  2. polyacrylonitrile

  3. polytetrafluoroethylene

  4. polyethylene terephthalate
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Polymethyl methacrylate:  PMMA, Lucite, Plexiglas

Multiple choice

The monomer(s) of Buna-S rubber is/are

  1. acrylonitrile and butadiene

  2. styrene and butadiene

  3. isoprene

  4. caprolactum
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Styrene (H2C=CHC6H5) and butadiene (H2C=C-CH=CH2) are monomers of Buna-S.

Multiple choice

Which of the following statements is correct?

  1. Caprolactam is the monomer of nylon-6,6.

  2. Terylene is a polyester polymer

  3. Urea formaldehyde resin is known as bakelite

  4. Teflon is prepared by condensation polymerization.
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Terylene is a polyester polymer.This is the correct statement.

Multiple choice

Which of the following statements is false?

  1. The repeat unit in natural rubber is isoprene.

  2. The monomers of buna S rubber are isoprene and butadiene.

  3. Polystyrene is a chain growth polymer.

  4. Cellulose is a polymer of glucose.
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The monomers of buna S rubber are styrene and butadiene. Hence, this is the correct statement.