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JEE Advanced

Exam: JEE Advanced
Subject: Chemistry
Chapter: Polymers

JEE Advanced · Chemistry · Polymers

Which among the following statements is NOT true for LDP ?

Which among the following statements is NOT true for

\mathrm{LDP}

?

Options

AIt needs $\mathrm{O}_2$ or peroxide as initiator synthesis process.
BIt is a branched chain polymer.
CIt needs low pressure about $6-7$ atm in synthesis process.
DIt has low melting point than HDP.

Correct answer

C. It needs low pressure about $6-7$ atm in synthesis process.

Step-by-step solution

LDP is prepared by polymerization of ethylene under high pressure

(1000-2000 \mathrm{~atm})

and temperature

(350-570 \mathrm{~K})

in presence of traces of

\mathrm{O}_2

or peroxide as initiator.

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