Verified Solution • 2025–26 Session moderate

QJEEM20Chb293: JEE Main 2020 Chemistry - Class 12 JEEM20Chb293 Solution: The correct match between Item - I and Item - II is : .tg…

The correct match between Item - I and Item - II is :

Item - I Item - II
(a) Natural rubber (I) 1, 3-butadiene + styrene
(b) Neoprene (II) 1, 3-butadiene + acrylonitrile
(c) Buna-N (III) Chloroprene
(d) Buna-S (IV) Isoprene

Multiple Choice Options

  • A (a) - (IV), (b) - (III), (c) - (II), (d) - (I)
  • B (a) - (III), (b) - (IV), (c) - (I), (d) - (II)
  • C (a) - (III), (b) - (IV), (c) - (II), (d) - (I)
  • D (a) - (IV), (b) - (III), (c) - (I), (d) - (II)

Step-by-Step Verified Solution

Natural rubber – Polymer of isoprene

Neoprene – Polymer of chloroprene

Buna N – Polymer of 1,3-Butadiene and acrylonitrile

Buna S – Polymer of 1,3-Butadiene and styrene

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