A) neoprene
B) chloroprene
C) glyptal
D) nylon
Correct Answer: A
Solution :
In neoprene (artificial rubber), monomer unit is\[C{{H}_{2}}=\underset{\begin{smallmatrix} | \\ Cl \end{smallmatrix}}{\mathop{C}}\,-CH=C{{H}_{2}}\] (chloroprene) while isoprene \[(C{{H}_{2}}=\underset{\begin{smallmatrix} | \\ C{{H}_{3}} \end{smallmatrix}}{\mathop{C}}\,-CH=C{{H}_{2}})\]the monomer of natural rubber.
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