X on polymerisation gives neoprene. Identify X.

1-Chloro-1,3-butadiene

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2-chloro-1,3-butadiene

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1-Methyl-1,3-butadiene

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2-Methyl-1,3-butadiene

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Solution

The correct option is B 2-chloro-1,3-butadiene
Neoprene or polychloroprene is a synthetic rubber obtained from addition polymerisation of chloroprene (2-chloro-1,3-butadiene) through free radical mechanism, it has s better stability towards oxidation than natural rubber.

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