VMMC VMMC Medical Solved Paper-2014

  • question_answer
    The main point of difference between buna-N and buna-S is

    A) the former is homopolymer whereas the later is copolymer

    B) former contains buta-1,3-diene but later does not

    C) former contains acrylonitrile but later contains styrene

    D) All of the above    

    Correct Answer: C

    Solution :

    Buna-S= constituents are buta-1,3-diene and styrene. Buna - N = constituents are buta-1, 3-diene and acrylonifrile.         


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