A) \[-(C{{H}_{2}}-)\underset{\begin{smallmatrix} | \\ Cl \end{smallmatrix}}{\mathop{C}}\,=CH-C{{H}_{2}}){{-}_{n}}\]
B) \[-(C{{H}_{2}}-\underset{{}}{\overset{\begin{smallmatrix} CN \\ | \end{smallmatrix}}{\mathop{C}}}\,H){{-}_{n}}\]
C) \[-(C{{H}_{2}}-\underset{{}}{\overset{\begin{smallmatrix} CN \\ | \end{smallmatrix}}{\mathop{C}}}\,H){{-}_{n}}\]
D) \[-(\underset{\begin{smallmatrix} | \\ {{C}_{6}}{{H}_{5}} \end{smallmatrix}}{\mathop{CH}}\,-C{{H}_{2}}){{-}_{n}}\]
Correct Answer: A
Solution :
| [a] Neoprene (synthetic rubber) is a polymer of chloroprene (i'e, 2-chloro-1, 3-butadiene). |
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