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Polymers · Question 8

NEET 2016 (Phase 1)MCQEasy📈 Topic in 12% papers+4−1
1

Natural rubber has

  1. alternate cis- and trans-configuration
  2. random cis- and trans-configuration
  3. all cis-configuration
  4. all trans-configuration.

Answer

(3) all cis-configuration

Solution

As per NCERT, natural rubber is a linear polymer of isoprene (2-methyl-1,3-butadiene) and is also called cis-1,4-polyisoprene.

All the double bonds have cis-configuration, so the chains cannot come close, and rubber shows elasticity.

Answer: (3)

Out of syllabusNEET 2016 (Phase 1)

Keep practising — Polymers

2

Which one of the following structures represents nylon 6, 6 polymer?

  1. [figure]
  2. [figure]
  3. [figure]
  4. [figure]
Out of syllabusNEET 2016 (Phase 2)
3

Caprolactam is used for the manufacture of

  1. teflon
  2. terylene
  3. nylon 6, 6
  4. nylon 6
Out of syllabusAIPMT 2015
4

Biodegradable polymer which can be produced from glycine and aminocaproic acid is

  1. buna - N
  2. nylon 6, 6
  3. nylon 2-nylon 6
  4. PHBV
Out of syllabusAIPMT 2015 (Cancelled)
5

Which of the following organic compounds polymerizes to form the polyester dacron?

  1. Propylene and para HO-(C6H4)-OH
  2. Benzoic acid and ethanol
  3. Terephthalic acid and ethylene glycol
  4. Benzoic acid and para HO-(C6H4)-OH
Out of syllabusAIPMT 2014
6

Which one of the following is an example of thermosetting polymer?

  1. [figure]
  2. [figure]
  3. [figure]
  4. [figure]
Out of syllabusAIPMT 2014
7

Nylon is an example of

  1. polyamide
  2. polythene
  3. polyester
  4. polysaccharide.
Out of syllabusNEET 2013
8

Which is the monomer of neoprene in the following?

  1. CH2= Cl |C-CH=CH2
  2. CH2=CH-C CH
  3. CH2=CH-CH=CH2
  4. CH2= CH3 |C-CH=CH2
Out of syllabusNEET 2013
9

Which one of the following sets forms the biodegradable polymer?

  1. CH2=CH-CN and CH2=CH-CH=CH2
  2. H2N-CH2-COOH and H2N-(CH2)5-COOH
  3. HO-CH2-CH2-OH and [figure]
  4. [figure] and CH2=CH-CH=CH2
Out of syllabusAIPMT 2012 (Mains)
10

Which one of the following is not a condensation polymer?

  1. Melamine
  2. Glyptal
  3. Dacron
  4. Neoprene
Out of syllabusAIPMT 2012 (Prelims)
11

Which of the following statements is false?

  1. Artificial silk is derived from cellulose.
  2. Nylon-6, 6 is an example of elastomer.
  3. The repeat unit in natural rubber is isoprene.
  4. Both starch and cellulose are polymers of glucose.
Out of syllabusAIPMT 2012 (Prelims)

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