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Polymers
Synthetic Rubbers
3 questions from 3 papers, each with its answer.
- questions
- 3
- papers
- 3
- years asked, 2017–2026
- 1 of 10
- of Polymers
- 8.82%
Appears in
Concepts tested
- Chloroprene
- monomer of neoprene
- Neoprene
All Questions
2023 1 question
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Which amongst the following molecules on polymerization produces neoprene?
Chloroprene is the monomer of neoprene.
Chloroprene is the monomer of neoprene. 2-chlorobuta-1,3-diene (chloroprene) polymerises to polychloroprene ('neoprene').
2013 NEET 1 question
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Which is the monomer of Neoprene in the following?$n\,CH_2=C(Cl)-CH=CH_2$ (chloroprene) $\xrightarrow{\text{polymerisation}} \left[-CH_2-C(Cl)=CH-CH_2-\right]_n$ (neoprene, artificial rubber)
2010 AIPMT-PRE 1 question
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Which of the following structures represents Neoprene polymer?Neoprene (polychloroprene) is a synthetic rubber formed by free radical addition polymerisation of chloroprene, 2-chloro-1,3-butadiene.
$n\ CH_2=C(Cl)-CH=CH_2 \rightarrow -[CH_2-C(Cl)=CH-CH_2]_n-$
Polymerisation occurs by 1,4-addition, leaving one double bond in each repeating unit.
$-[CH(C_6H_5)-CH_2]_n-$ is polystyrene, $-[CH_2-CH(CN)]_n-$ is polyacrylonitrile (orlon) and $-[CH_2-CH(Cl)]_n-$ is polyvinyl chloride (PVC).
Hence neoprene is $-[CH_2-C(Cl)=CH-CH_2]_n-$.