Answer:
Low density polythene
High
density polythene
1.
It is prepared under high pressure of 1000-2000 atm.
It
is prepared under low pressure of 6-7 atm.
2.
It is tough but flexible.
It
is tougher and harder.
3.
Highly branched structure. So, it has low density due to less closely
packed.
It
is linerarly arranged and has a high density due to close packing.
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