Practicing Success

Target Exam

CUET

Subject

Chemistry

Chapter

Organic: Polymers

Question:
Which catalyst is used in the preparation of LDPE?
Options:
Dioxygen
Dinitrogen
Helium
Nickel
Correct Answer:
Dioxygen
Explanation:
Low density polythene (LDPE) is obtained by the polymerization of ethene under high pressure of 1000 to 2000 atmospheres at a temperature of 350 K to 570 K in the presence of traces of dioxygen or a peroxide initiator (catalyst).