12th Class Chemistry Polymers / बहुलक Question Bank 12th CBSE Chemistry Polymers

  • question_answer
      How is high density polythene prepared?

    Answer:

      High density polythene is formed when addition polymerisation of ethene takes place in hydrocarbon solvent in the presence of catalyst such as triethyl aluminium and titanium tetrachloride (also called Ziegler Natta catalyst) at a temperature 333 K to 343 K and under a pressure 6-7 atmosphere.


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