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NEET Chemistry Polymers / बहुलक Question Bank Self Evaluation Test - Polymers

  • question_answer
    Given the polymers (i) Nylon-6, 6; (ii) Buna-S; (iii) Polythene. Arrange these in increasing order of their inter-molecular forces (lower to higher)

    A) (i)>(ii)>(iii)       

    B) (ii)>(iii)>(i)

    C) (ii)<(iii)<(i)       

    D) (iii)<(i)<(ii)

    Correct Answer: C

    Solution :

    [c] Nylon - 6, 6 is a fibre with hydrogen bonds thus have strongest intermolecular forces. Buna-S is a elastomer whereas polythene is thermoplastic, the intermolecular forces of attraction in thermoplastics is intermediate between elastomer and fibres. Therefore forces in elastomers are weakest.


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