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  4. In Ziegler-Natta polymerisation of ethylene, the active species is

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Q. In Ziegler-Natta polymerisation of ethylene, the active species is

Haryana PMTHaryana PMT 2011

Solution:

Ziegler-Natta catalyst is a mixture of $ TiCl_{4} $ and $ Al(C_{2}H_{5})_{3} $ which react to produce fibrous form of $ TiCl_{3} $ (an active metal species).