JEE Main Chemistry question

Not in JEE Main or NEET syllabus

The catalyst used in the polymerization of high density polythene is

(A)Titanium oxide
(B)Titanium isoperoxide
(C)Lithium tetrachloride and triphenyl aluminium
(D)Titanium tetrachloride and trimethyl aluminiumCorrect

Answer: (D)

Solution

High density polythene (HDPE) is obtained when ethene undergoes Ziegler-Natta (coordination) polymerization, using a catalyst system of titanium tetrachloride and trimethyl aluminium. The

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Question ID VK-151454