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Which is the monomer of Neoprene in the following?

1. CH2 = C—CH = CH2 CH3
2. CH2 = C—CH = CH2 Cl
3. CH2 = CH—C ≡ CH
4. CH2 = CH—CH = CH2

Correct answer: CH2 = C—CH = CH2 Cl

Solution

The monomer of Neoprene is chloroprene, which has the structure CH2=C—CH=CH2 with a chlorine atom attached to the second carbon. This matches option B.

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