question_answer

Which one of the following class of compounds is obtained by polymerization of acetylene?   [JEE Main Online Paper ( Held On 09 Apirl  2014  )

A) Poly-yne                             

B) Poly-ene

C) Poly-ester                          

D) Poly-amine

Correct Answer: B

Solution :

                Poly-ene. e.g \[\underset{acetylene}{\mathop{3CH\equiv CH}}\,\xrightarrow[{}]{{}}\underset{Benzene}{\mathop{{{C}_{6}}{{H}_{6}}}}\,\]