Question

The catalyst used in the polymerisation of ethylene is:

• A. $Al(C_2{H}_5{)}_3+TiC{l}_4$
• B. $SnC{l}_4$
• C. $Ni$
• D. $Pt$

Answer 1

The correct option is A $Al(C_2{H}_5{)}_3+TiC{l}_4$

Ziegler Natta catalyst ($R_{3}Al+TiC{l}_4$) is generally used in the polymerisation of $1$-alkenes (ethylene and alkenes with the vinyl double bond).
Heterogeneous supported catalysts based on titanium compounds are used in the polymerization reactions in combination with co-catalysts, i.e., organoaluminium compounds such as triethylaluminium, $Al(C_2{H}_5{)}_3$.