Polymers Test

Polymers

This is polymers Test-02 for CBSE class 12 Chemistry.. There are 15 questions in this test with each question having around four answer choices.

Questions & Answers

1
Addition polymers formed by the polymerisation of a single monomeric species
  • A
    copolymers
  • B
    Elastomers
  • C
    homopolymers
    Correct
  • D
    condensation polymers
2
One of the statements below is not true for the classification of polymers can be classified on the basis of their
  • A
    structure of the polymers
  • B
    mode of polymerisation
  • C
    unique mechanical properties
  • D
    resistance to different agents
    Correct
3
Which of the following is used as for manufacturing conveyor belts, gaskets and hoses.
  • A
    Buna – N
  • B
    Buna – S
  • C
    Neoprene
    Correct
  • D
    None of these
4
One of the following rubbers is used in making oil seals, tank lining, etc.
  • A
    None of these
  • B
    Neoprene
  • C
    Buna – N
    Correct
  • D
    Buna – S
5
The copolymerisation of 1, 3 – butadiene and acrylonitrile
  • A
    Buna – N
    Correct
  • B
    Neoprene
  • C
    None of these
  • D
    Buna – S
6
Nylon – 2 – Nylon – 6 is
  • A
    biodegradable polymer
    Correct
  • B
    homopolymer
  • C
    copolymer
  • D
    condensation polymer
7
Some polymers are called thermoplastic polymers because
  • A
    they soften on heating
  • B
    but soften on heating and harden on cooling
    Correct
  • C
    linear or slightly branched long chain molecules
  • D
    they harden on cooling
8
In the following reaction, the polymer formed is ?
Question 8 figure 1
  • A
    Neoprene
  • B
    Nylon – 2 – Nylon – 6
  • C
    Buna – S
  • D
    PHBV
    Correct
9
Intermolecular forces of thermoplastic polymers are
  • A
    more than fibres
  • B
    same as elatomers.
  • C
    between elastomers and fibres
    Correct
  • D
    more than elastomers
10
The below molecule is called
Question 10 figure 1
  • A
    PVC
    Correct
  • B
    polythene
  • C
    polyester
  • D
    polystyrene
11
PHBV is developed because :
  • A
    to reduce accumulation of the synthetic solid polymer waste
    Correct
  • B
    it is more easily prepared by copolymerisation
  • C
    None of these
  • D
    as an alternative to natural rubber
12
Hydrocarbons are prepared from Grignard reagent by
Question 12 figure 1
  • A
    Bakelite
  • B
    nylon 6,6
    Correct
  • C
    None of these
  • D
    nylon 6
13
The correct name of the polymer below is:
Question 13 figure 1
  • A
    Novolac
  • B
    Bakelite
    Correct
  • C
    Melamine polymer
  • D
    Dacron
14
Which of the following monomers form biodegradable polymers?
  • A
    Ethylene glycol + phthalic acid
  • B
    Glycine + amino caproic acid
  • C
    3 – hydroxybutanoic acid + 3 – hydroxypentanoic acid
  • D
    Both Glycine + amino caproic acid and Ethylene glycol + phthalic acid
    Correct
15
Vulcanisation makes rubber
  • A
    more stiff
  • B
    crystalline
  • C
    more elastic
  • D
    Both more elastic and crystalline
    Correct