question_answer

                                \[A\xleftarrow[\Delta ]{{{H}_{2}}O}Adiponitrile\xrightarrow[{}]{{{H}_{2}},Ni}B\] \[A+B\xrightarrow[{}]{\Delta }\]Polymer is Polymer is

A)  polyacrylonitrile              

B)  nylon-6

C)  nylon-66            

D)  buna-N

Correct Answer: C

Solution :

\[\underset{\text{adiponitrile}}{\mathop{\underset{\text{C}{{\text{H}}_{\text{2}}}\text{-C}{{\text{H}}_{\text{2}}}\text{-C}\equiv \text{N}}{\overset{\text{C}{{\text{H}}_{\text{2}}}\text{-C}{{\text{H}}_{\text{2}}}\text{-C}\equiv \text{N}}{\mathop{\text{ }\!\!|\!\!\text{ }}}}\,-}}\,\] \[A+B\xrightarrow[{}]{\Delta }\]polymer