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
| 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 |
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- (a) - (IV), (b) - (III), (c) - (II), (d) - (I)
- (a) - (III), (b) - (IV), (c) - (I), (d) - (II)
- (a) - (III), (b) - (IV), (c) - (II), (d) - (I)
- (a) - (IV), (b) - (III), (c) - (I), (d) - (II)
The Correct Option is A
Solution and Explanation
(b) Neoprene is polychloroprene, monomer chloroprene : (III).
(c) Buna-N is a copolymer of 1,3-butadiene and acrylonitrile : (II).
(d) Buna-S is a copolymer of 1,3-butadiene and styrene : (I).
So (a)-(IV), (b)-(III), (c)-(II), (d)-(I).
Answer: (1) (a) - (IV), (b) - (III), (c) - (II), (d) - (I)
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