A) nylon\[-6\]
B) Dacron
C) nylon\[-66\]
D) bakelite
Correct Answer: B
Solution :
Key Idea: \[\begin{align} & Adipic\text{ }acid+Hexamethylene \\ & \,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,diamine \\ \end{align}\] \[\downarrow _{nylon-66}^{Polymerisation}\] \[n{{H}_{2}}N{{(C{{H}_{2}})}_{6}}-N{{H}_{2}}+nHO-\overset{\begin{smallmatrix} O \\ || \end{smallmatrix}}{\mathop{C}}\,{{(C{{H}_{2}})}_{4}}-COOH\]\[\downarrow -n{{H}_{2}}O\] \[\underset{nylon-66}{\mathop{{{\left[ -HN-{{(C{{H}_{2}})}_{6}}-NH-\overset{\begin{smallmatrix} O \\ || \end{smallmatrix}}{\mathop{C}}\,-{{(C{{H}_{2}})}_{4}}-\overset{\begin{smallmatrix} O \\ || \end{smallmatrix}}{\mathop{C}}\,- \right]}_{n}}}}\,\].
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