question_answer

The monomer of Nylon-6 is/are                             [DPMT 2004]

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

B)                 

C)            \[{{F}_{2}}C=C{{F}_{2}}\]

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

Correct Answer: B

Solution :

            The monomer used in the preparation of Nylon-6 is caprolactam. \[+{{H}_{2}}O\,\to \,HOOC-{{(C{{H}_{2}})}_{5}}-N{{H}_{2}}+HNO\]\[\to \,\,HOOC-{{(C{{H}_{2}})}_{5}}-HN-CO-{{(C{{H}_{2}})}_{5}}-N{{H}_{2}}\] \[\underset{\text{Nylon-6}}{\mathop{{{\left[ \begin{matrix}    \,\,\,\,O & {} & H\,\,  \\    -\overset{||}{\mathop{C}}\, & {{(C{{H}_{2}})}_{5}} & \overset{|}{\mathop{N}}\,-  \\ \end{matrix} \right]}_{n}}}}\,\]