Alkynes. Open chain unsaturated hydrocarbons having the general formula CnH2n-2 and containing one triple bond (– C ≡ C –) in their molecules are called alkynes or acetylenes e.g.
Alkynes are further classified as terminal and non-terminal according to as the triple bond is present at the end of the chain or in between the chain.
The hydrogen atom attached to the terminal carbon is known as acetylenic hydrogen and the anion formed by removing acetylenic hydrogen is called acetylide or alky nide ion.
Naming of alkynes:
132 Views
Advertisement
Advertisement
175.
For the following compounds, write structural formulas and IUPAC names for all possible isomers having the number of double or triple bond as indicated:
199 Views
176.Write structures of different isomers corresponding to the 5th member of alkyne series. Also, write IUPAC names of all the isomers ?
373 Views
Short Answer Type
177.
How is acetylene obtained from: (i) Ethylene dibromide? (ii) Tetrabromoethane ?
1379 Views
Long Answer Type
178.
Discuss the preparation of higher alkynes.
164 Views
Advertisement
179.
Why do alkynes undergo electrophilic addition reactions ?
129 Views
Short Answer Type
180.Alkynes are less reactive towards electrophilic addition reactions than alkenes. Explain.