Notes

Preparation of Acetylenes…

Preparation of Acetylenes:
(i) Reactions of calcium carbide with Water
(ii) From dehydrohalogenation of dihalo acetylenes
(a) Vicinal dihalides
(b) Geminal dihalides
(iii) Dehydrohalogenation reaction
(iv) Kolbe’s electrolytic decarboxylation
(v) From lower acetylenes.