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  4. Synthetic polymer which resembles natural rubber, is

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Q. Synthetic polymer which resembles natural rubber, is

CMC MedicalCMC Medical 2008

Solution:

Neoprene is the polymer of chloroprene (2-chloro-but-1, 3-diene). It resembles in appearance with natural rubber. $ nC{{H}_{2}}=CH-\underset{Cl}{\mathop{\underset{\mathbf{|}}{\mathop{C}}\,}}\,=C{{H}_{2}}\xrightarrow{\text{polymerisation}} $ $ {{\left[ \underset{\text{neoprene}}{\mathop{-C{{H}_{2}}-CH=\underset{Cl}{\mathop{\underset{\mathbf{|}}{\mathop{C}}\,}}\,-C{{H}_{2}}-}}\, \right]}_{n}} $