The synthesis of 3–octyne is achieved by adding a bromolkane into a mixture of sodium amide and an
alkyne. The bromoalkane and alkyne respectively are
(A) 2 2 2 2 3 BrCH CH CH CH CH and 3 2 CH CH C ≡ CH (B) 2 2 3 BrCH CH CH and 3 2 2 CH CH CH C ≡ CH
(C) 2 2 2 2 3 BrCH CH CH CH CH and 3 CH C ≡ CH (D) 2 2 2 3 BrCH CH CH CH and 3 2 CH CH C ≡ CH .