Question

Which is the monomer of Neoprene in the following?

<!--td {border: 1px solid #cccccc;}br {mso-data-placement:same-cell;}--> NEET 2013

• A. $C{H}_2=CH-C\equiv CH$
• B. $C{H}_2=CH-CH=C{H}_2$
• C. $C{H}_2=C\left(Cl\right)-CH=C{H}_2$
• D. $C{H}_2=C\left(C{H}_3\right)-CH=C{H}_2$

Answer 1

The correct option is C $C{H}_2=C\left(Cl\right)-CH=C{H}_2$

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

Chloroprene is the monomer of neoprene.
Chloroprene is also known as 2-chloro buta-1,3-diene.