MHT CET202613 April 2026Evening ShiftChemistryPolymersActual
Name the catalyst used in the manufacture of HDPE polymer.
Options
- ATriethyl aluminum with titanium tetrachloride
- BTriethyl aluminum with zinc chloride
- CTriethyl aluminum with nickel chloride
- DTriethyl aluminum with stannic chloride
Correct answer
A. Triethyl aluminum with titanium tetrachloride
Step-by-step solution
High-density polyethylene (HDPE) is manufactured by the coordination polymerization of ethene using a Ziegler-Natta catalyst. The Ziegler-Natta catalyst is a mixture of triethyl aluminum, (C₂H₅)₃Al , and titanium tetrachloride, TiCl₄ . Answer: Triethyl aluminum with titanium tetrachloride