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

  • question_answer
    Which one of the following sets forms the biodegradable polymer?

    A) \[C{{H}_{2}}=CH-CN\] and  \[C{{H}_{2}}=CH-CH=C{{H}_{2}}\]

    B) \[{{H}_{2}}N-C{{H}_{2}}-COOH\] and  \[{{H}_{2}}N-{{(C{{H}_{2}})}_{5}}-COOH\]

    C) \[HO-C{{H}_{2}}-C{{H}_{2}}-OH\] and

    D)  and  \[C{{H}_{2}}=CH-CH=C{{H}_{2}}\]

    Correct Answer: B

    Solution :

    [b] Biodegradable polymer is nylon-2, 6 which is copolymer of glycine \[({{H}_{2}}N-C{{H}_{2}}-COOH)\] and amino caproic acid \[({{H}_{2}}N-{{(C{{H}_{2}})}_{5}}-COOH)\]. \[\underset{\text{Glycine}}{\mathop{n{{H}_{2}}N-C{{H}_{2}}}}\,-\underset{\text{Amino}\,\,\text{caproic}\,\,\text{acid}}{\mathop{COOH+n{{H}_{2}}N}}\,-{{(C{{H}_{2}})}_{5}}-COOH\to \] \[-(\underset{Nylon-2,\,6}{\mathop{HN-C{{H}_{2}}-\overset{O}{\mathop{\overset{||}{\mathop{C}}\,}}\,-NH-{{(C{{H}_{2}})}_{5}}-\overset{O}{\mathop{\overset{||}{\mathop{C}}\,}}\,)-{{}_{n}}}}\,\]


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