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Question Bank [2022] — Chemistry STD 12 Science — Question

Maharashtra BoardEnglish MediumSTD 12 ScienceChemistryQuestion Bank [2022]3 Marks
Question
Write two uses and two properties of polythene.
✓

Answer

Uses of high-density polyethylene:

  1. HDP is used in the manufacture of toys and other household articles like buckets, dustbins, bottles, pipes, etc.
  2. It is used to prepare laboratory wares and other objects where high tensile strength and stiffness is required.

Properties of high-density polyethylene:

  1. HDP is crystalline, melting point in the range of 144 - 150 °C.
  2. It is much stiffer than LDP and has high tensile strength and hardness.
  3. It is more resistant to chemicals than LDP.

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