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Polymers · Question 27

AIPMT 2003MCQEasy📈 Topic in 0% papers+4−1
1

Acrilan is a hard, horny and a high melting material. Which one of the following represents its structure?

  1. [figure]
  2. [figure]
  3. [figure]
  4. [figure]

Answer

(1) [figure]

Solution

As per NCERT, polyacrylonitrile is made by addition polymerisation of acrylonitrile in presence of a peroxide catalyst; it is used as a substitute for wool in making commercial fibres such as orlon or acrilan.

nCH2=CH-CN Polymerisation -[CH2-CH(CN)]n-

⇒ The repeat unit carries a –CN group on alternate carbon atoms.

∵ (2) is polymethyl methacrylate, (3) is polyethyl acrylate and (4) is polyvinyl chloride.

∴ Structure (1) represents acrilan.

Answer: (1)

Out of syllabusAIPMT 2003

Keep practising — Polymers

2

Which one of the following monomers gives the polymer neoprene on polymerization?

  1. CH2=CHCl
  2. CCl2=CCl2
  3. [figure]
  4. CF2=CF2
Out of syllabusAIPMT 2003
3

Monomer of [figure] is

  1. 2-methylpropene
  2. styrene
  3. propylene
  4. ethene
Out of syllabusAIPMT 2002
4

Which of the following is not correctly matched?

  1. Neoprene : [figure]
  2. Nylon-6,6 : [figure]
  3. Terylene : [figure]
  4. PMMA : [figure]
Out of syllabusAIPMT 2001
5

CF2=CF2 is the monomer of

  1. teflon
  2. orlon
  3. polythene
  4. nylon-6
Out of syllabusAIPMT 2000

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