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NEET AIPMT SOLVED PAPER SCREENING 2006

  • question_answer
                    \[{{[NH(C{{H}_{2}})NHCO{{(C{{H}_{2}})}_{4}}CO]}_{n}}\] is a:                                                                                                                   

    A)                  co-polymer       

    B)                  addition polymer           

    C)                  thermo-setting polymer                             

    D)                  homopolymer

    Correct Answer: A

    Solution :

                                                              \[-[NH{{(CH)}_{2}}NHCO{{(C{{H}_{2}})}_{4}}CO]{{-}_{n}}\] is a copolymer because polymers whose repeating structural units are derived form two or more types of monomer units are called copolymer. \[n{{H}_{2}}N{{(C{{H}_{2}})}_{2}}N{{H}_{2}}+nHOOC{{(C{{H}_{2}})}_{4}}COOH\]                 \[\xrightarrow[-n{{H}_{2}}O]{Polymerisation}-\left[ NH(C{{H}_{2}}){{ & }_{2}}NHCO{{(C{{H}_{2}})}_{4}}CO \right]{{-}_{n}}\]


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