Verified Solution • 2025–26 Session moderate

QJEEM23Ch810b: JEE Main 2023 Chemistry - Class 12 JEEM23Ch810b Solution: The polymer - consists of linear molecules and is closely…

The polymer X\mathrm{X} - consists of linear molecules and is closely packed. It is prepared in the presence of triethylaluminium and titanium tetrachloride under low pressure. The polymer X\mathrm{X} is-

Multiple Choice Options

  • A High density polythene
  • B Polytetrafluoroethane
  • C Low density polythene
  • D Polyacrylonitrile

Step-by-Step Verified Solution

The polymer X described in the question is synthesized using triethylaluminium and titanium tetrachloride under low pressure. This is a clear indication that the Ziegler-Natta catalyst is used, which is typically employed in the synthesis of high-density polyethylene (HDPE).

High-density polyethylene is made up of linear molecules that pack closely together, giving the material its high density. This is in contrast to low-density polyethylene (LDPE), which has a branched structure that prevents the chains from packing closely together.

So, the polymer X is :

Option A: High-density polyethylene.

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