question_answer

Which is the monomer of neoprene in the following?                                    [NEET 2013]

A) \[C{{H}_{2}}=CH-C\equiv CH\]

B) \[C{{H}_{2}}=\underset{\begin{smallmatrix}  | \\  C{{H}_{3}} \end{smallmatrix}}{\mathop{C}}\,-CH=C{{H}_{2}}\]

C) \[C{{H}_{2}}=\underset{\begin{smallmatrix}  | \\  Cl \end{smallmatrix}}{\mathop{C}}\,-CH=C{{H}_{2}}\]

D) \[C{{H}_{2}}=CH-CH=C{{H}_{2}}\]

Correct Answer: C

Solution :

[c] Neoprene is synthetic rubber and is a polymer of chloroprene which is chemically 2-chlorobuta-1, 3-diene.