question_answer

\[2-\] Hexyne gives trans \[-2-\]Hexene on treatment with :   AIEEE  Solved  Paper-2012

A) \[Pt/{{H}_{2}}\]                   

B) \[Li/N{{H}_{3}}\]

C) \[Pd/BaS{{O}_{4}}\]                          

D) \[LiAI{{H}_{4}}\]

Correct Answer: B

Solution :

             \[C{{H}_{3}}-C{{H}_{2}}-C{{H}_{2}}-C=C-C{{H}_{3}}\xrightarrow[Birch\,\,reduction]{Li/N{{H}_{3}}}\]