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Which of the following is not suitable for the polymerisation of ethene to form high-density polythene?

Which of the following is not suitable for the polymerisation of ethene to form high-density polythene? Correct Answer Temperature of 500K

HDP is formed when polymerisation of C2H4 takes place through addition in a hydrocarbon solvent with Ziegler-Natta catalyst at temperature of 333-343K and under a pressure of 6-7 atmospheres. Temperatures and pressure higher than this will favour the formation of LDP.

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