Which of the following statements is/are not correct ?A. High pressure polymerisation of ethylene in the presence of a free radical initiator gives highly branched polymerB. The density of high pressure polymerised ethylene is more than that of low pressure polymerised ethyleneC. Polymerisation of ethylene at low temperature and pressure results into a linear polymer with much less branched chainsD. Low pressure polymerisation of ethylene can be done at a lower temperature using a Ziegler catalyst

Which of the following statements is/are not correct ?A. High pressure

1.	Which of the following statements is/are not correct ?A. High pressure polymerisation of ethylene in the presence of a free radical initiator gives highly branched polymerB. The density of high pressure polymerised ethylene is more than that of low pressure polymerised ethyleneC. Polymerisation of ethylene at low temperature and pressure results into a linear polymer with much less branched chainsD. Low pressure polymerisation of ethylene can be done at a lower temperature using a Ziegler catalyst
Answer» Correct Answer - B Density of high pressure polymerised ethylene (LDPE, 200 atm. pressure ) is less than that of low pressure (6-7 atm ) polymerised ethylene (HDPE).