Hello,

First of all please write your questions in a proper manner. It is Alkyne,not Alkyle. I understood thr first part of your question, so i would like to answer it.

Alkyne is an unsaturated hydrocarbon,having atleast 1 Carbon - carbon triple bond.

General formula for alkynes is CnH2n-2.

Second,part of your question isn't clear,so kindly write it properly from next time.

ALL THE BEST.