question_answer

  How will you differentiate between low density and high density polythene?

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.