JEE Main - Previous Year Papers JEE MAIN 2023 JEE MAINS 11 APRIL- 2023 PAPER SHIFT -1 Single Correct MCQ
Published on: August 23, 2026

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

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

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The correct answer is:
D

Ethene undergoes addition polymerisation to high density polythene in the presence of catalyst such as and (Ziegler - Natta catalyst) at a temperature of to and under a pressure of 6-7 atmosphere.

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