Chemistry - Polymer Question with Solution | TestHub

High density polythene (or plastic) is prepared by heating ethylene at about $330-350\mathrm{K}$, under a pressure of $1-2$ atm and in the presence of Ziegler-Natta catalyst. $$n{\mathrm{CH}}_2={\mathrm{CH}}_2\frac{330-350\mathrm{K},1-2\mathrm{atm}}{\text{ Ziegler-Natta catalyst }}+{\mathrm{CH}}_2-{\mathrm{CH}}_2{\to }_n$$ high density polythene