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

  • question_answer
      What is difference between novolac and bakelite?

    Answer:

      The initial linear product formed by the polymerisation of phenol and formaldehyde is called novolac. It is soft. Whereas novolac on heating with formaldehyde undero cross linking to form bakelite. It is hard.


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