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Polymers · Question 28

AIPMT 2003MCQEasy📈 Topic in 12% papers+4−1
1

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

  1. CH2=CHCl
  2. CCl2=CCl2
  3. [figure]
  4. CF2=CF2

Answer

(3) [figure]

Solution

As per NCERT, neoprene (polychloroprene) is formed by free radical polymerisation of chloroprene (2-chloro-1,3-butadiene).

nCH2=C(Cl)-CH=CH2 Polymerisation -[CH2-C(Cl)=CH-CH2]n-

∵ CH2=CHCl gives PVC and CF2=CF2 gives teflon.

∴ The monomer of neoprene is chloroprene, option (3).

Answer: (3)

Out of syllabusAIPMT 2003

Keep practising — Polymers

2

Monomer of [figure] is

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

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
4

CF2=CF2 is the monomer of

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

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