PVC poloymer can be prepared by which of the monomers ?

Q.

The polymer PVC can be prepared by which of the monomers?

Q. The polymer PVC can be prepared by which of the following monomers?

Q. For the following reactions the major product are shown :
$H_2=CH-CH=C{H}_2\underset{0^{\circ }C}{\overset{HBr}{\to }}{H}_{2}C=CH-\underset{Br}{\underset{|}{CH}}-C{H}_3\stackrel{+{25}^{\circ }C}{\to }\underset{Br}{\underset{|}{C{H}_{2}CH}}=CHC{H}_3$
These provide an example of $\underset{–}{1}$ control at low temperatue and $\underset{–}{2}$ control at higher temperature.

Q. Write IUPAC name of the following
$C{H}_3-\stackrel{N{o}_2}{\stackrel{|}{C}}H-\underset{Cl}{\underset{|}{C}}H-\underset{C{H}_3}{\underset{|}{C}}H-C{H}_3$

Q. Out of $\begin{array}{ccc}C{H}_3-& CH& -C{H}_2-Cl\\ & |& \\ & C{H}_3& \end{array}$ and $\begin{array}{ccc}C{H}_3-C{H}_2-& CH& -Cl\\ & |& \\ & C{H}_3& \end{array}$,