Indian Forest Service (Mains), Chemistry optional · 2023 · Paper II
Q7(c). Neoprene and chloroprene
Question
Give neoprene and its monomer precursor, referring to the Ziegler–Natta catalyst mentioned in the question.
Answer in brief
Neoprene is polychloroprene; its monomer is 2-chlorobuta-1,3-diene, CH₂=C(Cl)CH=CH₂.
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Coversneoprenechloroprenepolychloroprenesynthetic rubberZiegler–Natta catalyst
All parts of Question 7
- 7(a) Photochemistry of a rigid aryl ketone5 marks
- 7(b) Sequential anionic polymerization5 marks
- 7(c) Neoprene and chloroprene5 marks
- 7(d) Why polymers have average molar masses5 marks
- 7(e) Two unsaturated ester isomers5 marks
- 7(f) Sanger determination of the N terminus5 marks
- 7(g) Chemical-shift separation in Hz5 marks
- 7(h) Hydration of phenylacetylene5 marks