Question

The monomer when treated with Zieglar - Natta catalyst undergo polymerisation. The polymer obtained when monomeric unit used is:

$C{H}_2=\stackrel{\underset{|}{Cl}}{C}-CH=C{H}_2$

• A. neoprene
• B. stilbene
• C. styrene
• D. chloropicrin

Answer 1

The correct option is A neoprene

Ziegler–Natta catalysts are used to polymerize terminal alkenes (ethylene and alkenes with the vinyl double bond)

$Al{R}_3$ and $Ti{Cl}_4$ are used as Ziegler–Natta catalyst.

$C{H}_2=CCl-CH=C{H}_2$ is a terminal alkene. On treatment with Ziegler-Natta catalyst it gives neoprene.

Hence, the correct answer is A.