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WB JEE Medical WB JEE Medical Solved Paper-2010

  • question_answer
    Which one of the following is an example of co-polymer?

    A)  Buna-S                                

    B)  Teflon

    C)  PVC                                      

    D)  Polypropylene

    Correct Answer: A

    Solution :

                     Buna-S is a co-polymer of butadiene and styrene. \[\underset{\text{buna}\,-\text{S}}{\mathop{-{{(C{{H}_{2}}-CH=CH-C{{H}_{2}}-\overset{{{C}_{6}}{{H}_{5}}}{\mathop{\overset{|}{\mathop{C}}\,}}\,H-C{{H}_{2}}-)}_{n}}}}\,\]


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