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← JEE Main 2022 · 30 Jun · Shift 1
ChemistryList match+4 / -1Question 78 of 90

JEE Main 2022 · 30 Jun · Shift 1, Chemistry question 78

Match List - I with List - II.

Choose the correct match from the options given below :

List - I Polymer

  • a
    Acrilan
  • b
    Neoprene
  • c
    Polystyrene
  • d
    Buna-N

List - II Repeat Unit

  • i
    −(CH2−C(Cl)=CH−CH2)−n\mathrm{{-}(CH_2{-}C(Cl){=}CH{-}CH_2){-}_n}
  • ii
    −(CH2−CH(C6H5))−n\mathrm{{-}(CH_2{-}CH(C_6H_5)){-}_n}
  • iii
    −(CH2−CH(CN))−n\mathrm{{-}(CH_2{-}CH(CN)){-}_n}
  • iv
    −(CH2−CH=CH−CH2−CH2−CH(CN))−n\mathrm{{-}(CH_2{-}CH{=}CH{-}CH_2{-}CH_2{-}CH(CN)){-}_n}
Choose one option
Answer and worked solution

Official answer: C

Repeat units. Acrilan (CH2CHCN)n\mathrm{(CH_2CHCN)_n} (iii), neoprene (i), polystyrene (ii), Buna-N (iv).

(C)

Topics:Common polymers
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