Polymers

Polymers MDCAT MCQs with answers

14 past paper MCQs on Polymers, from the Industrial Chemistry unit of MDCAT Chemistry. The year each question appeared is shown where known; tap “Show answer” for the correct option and a short solution.

Read the notes first Practise the unit as a quiz

1.Poly vinyl chloride (PVC) is the type of? (UHS MDCAT 2025)

  1. Homopolymer
  2. Thermosetting polymer
  3. Thermoplastic polymer
  4. Copolymor
Show answer

Correct answer: (a) Homopolymer

PVC is built from one monomer, vinyl chloride, so it is a homopolymer.

2.Which one is addition polymer? (SIBA MDCAT 2025)

  1. polyvinyl chloride
  2. nylon 6,6
  3. nylon 6,10
  4. polyester
Show answer

Correct answer: (a) polyvinyl chloride

Poly(vinyl chloride) is made by adding monomers with nothing eliminated; the nylons and polyesters are condensation polymers.

3.Bakelite is formed upon polymerization of: (NUMS MDCAT 2024)

  1. Phenol + HCHO dilute base
  2. Phenol + NaOH H2O
  3. Phenol + H2SO4 H2O
  4. Phenol + CH3-C(=O)-Cl H2SO4
Show answer

Correct answer: (a) Phenol + HCHO dilute base

Bakelite is the condensation polymer of phenol with formaldehyde.

4.A polymer called Bakelite is formed by the reaction of phenol with: (PMC Practice 2021)

  1. Hydrogen
  2. Ethers
  3. Carboxylic acid
  4. Formaldehyde
Show answer

Correct answer: (d) Formaldehyde

Bakelite is the condensation polymer of phenol with formaldehyde.

5.Disposable cups are made of a polymer ‘polystyrene’. Polystyrene is: (UHS MDCAT 2019)

  1. A polyamide
  2. A condensation polymer
  3. An addition polymer
  4. A polyester
Show answer

Correct answer: (c) An addition polymer

Polystyrene is made by adding styrene monomers with nothing eliminated.

6.Which one of the following compounds is an additional polymer? (UHS MDCAT 2019)

  1. Polyvinyl chloride
  2. Nylon
  3. Carbohydrate
  4. Polyester
Show answer

Correct answer: (a) Polyvinyl chloride

Poly(vinyl chloride) is built by adding monomers with nothing eliminated.

7.Which one of the following is the structure of Teflon? (UHS MDCAT 2018)

  1. (-CF2-CF2-)n
  2. (-CF2-CCl2-)n
  3. (-CH2-CH2-)n
  4. (-CF2-CH2-)n
Show answer

Correct answer: (a) (-CF2-CF2-)n

Teflon is poly(tetrafluoroethene).

8.Nylon-6,6 is also called: (UHS MDCAT 2018)

  1. Poly styrene
  2. Polyester
  3. Polyamide
  4. Polyvinyl alcohol
Show answer

Correct answer: (c) Polyamide

Nylon-6,6 is a polyamide, made from a diamine and a diacid.

9.Which is the structure of polyvinyl chloride (polychloroethane)? (UHS MDCAT 2018)

  1. -[CCl2-CCl2]-
  2. -[HCCl-CH-Cl]-
  3. [H2C=CH-Cl]
  4. -[H2C-CH-Cl]-
Show answer

Correct answer: (d) -[H2C-CH-Cl]-

Poly(vinyl chloride) is a chain of $\mathrm{-CH_2-CHCl-}$ units.

10.Among the following, which compound is formed by addition polymerization: (UHS MDCAT 2017)

  1. Polystyrene
  2. Polyester
  3. Nylon
  4. Both Polystyrene & Polyester
Show answer

Correct answer: (a) Polystyrene

Polystyrene is made by adding styrene monomers with nothing eliminated.

11.Identify the monomers of Polyvinyl chloride: (UHS MDCAT 2017)

  1. Vinyl acetate
  2. Butyl maleate
  3. Styrene
  4. Vinyl chloride
Show answer

Correct answer: (d) Vinyl chloride

Poly(vinyl chloride) is made from vinyl chloride.

12.Which one of the following polymer is called as Nylon 6,6? (UHS MDCAT 2016)

  1. Polyester
  2. Polyvinyl chloride
  3. Polyamide
  4. Polyvinyl acetate
Show answer

Correct answer: (c) Polyamide

Nylon-6,6 is a polyamide made from a diamine and a diacid.

13.Polymide is formed due to the condensation od hexane-dioic acid with (UHS MDCAT 2015)

  1. Hexane-1,5-diamine
  2. Hexane-1,6-diamine
  3. Hexane-1,4-diamine
  4. Hexane-2,5-diamine
Show answer

Correct answer: (b) Hexane-1,6-diamine

Nylon-6,6 is adipic acid condensed with hexane-1,6-diamine.

14.Which one of the following is an example of co-polymer? (UHS MDCAT 2015)

  1. Polyamide
  2. Polystyrene
  3. Polyvinyl acetate
  4. Polyvinyl chloride
Show answer

Correct answer: (a) Polyamide

A polyamide is built from two different monomers, so it is a copolymer.